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Journal articles on the topic 'Tensile strength and elongation'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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Zhou, Xiaozhou, Jiangjie Xu, Li Meng, Wenshan Wang, Ning Zhang, and Lei Jiang. "Machine-Learning-Assisted Composition Design for High-Yield-Strength TWIP Steel." Metals 14, no. 8 (2024): 952. http://dx.doi.org/10.3390/met14080952.

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Twinning-induced plasticity (TWIP) steel is an ideal material for impact-resistant structures and energy absorption because of its high product of strength and elongation. However, compared with other advanced high-strength steels, the relatively low yield strength of TWIP steel is one of the important shortfalls that significantly limits its engineering applications. To enhance the comprehensive properties of TWIP steel, a machine learning design strategy that integrated comparative modelling, SHAP analysis, and multi-objective optimization were adopted in this study. Initially, various machine learning algorithms were compared for their predictive accuracy based on normalized data (273 entries) regarding the microstructure and properties of TWIP steel. Then, performance prediction models for yield strength, tensile strength, and elongation were established. SHAP analysis was subsequently employed to assess the significance and explicit laws of composition and microstructures in these three target properties, identifying key elements that enhance the overall performance. Furthermore, two new TWIP steels with high yield strengths and high products of strength and elongation were developed via multi-objective optimization. Under conventional hot forging + hot rolling + cold rolling + annealing processes, the two designed TWIP steels had yield strengths of 585 MPa and 560 MPa, tensile strengths of 1055 MPa and 1101 MPa, elongations of 55% and 58.5%, and products of strength and elongation of 58.0 GPa% and 66.4 GPa%, respectively. The yield strengths of the designed TWIP steels significantly improved while maintaining a reasonable product of strength and elongation. This work provides important references for the rational development of new TWIP steels.

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Chen, Bin, Dong Liang Lin, Xiao Qin Zeng, and Chen Lu. "Elevated Temperature Mechanical Behavior of Mg-Y-Zn Alloys." Materials Science Forum 546-549 (May 2007): 237–40. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.237.

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The elevated temperature mechanical behavior of Mg-Y-Zn alloys was investigated. It was found that the extruded Mg-Y-Zn alloy exhibited excellent mechanical properties both at ambient temperature and elevated temperature. With the increase of tensile temperature, the ultimate tensile strengths of Mg-Y-Zn alloys decreased and their elongations increased. The ultimate tensile strengths increased and elongations decreased with the increase of yttrium content. However, a gradual increase in the ultimate tensile strength and elongation both at ambient temperature and elevated temperature was obtained by increasing both yttrium and zinc contents. The fracture modes of Mg-Y-Zn alloys at different tensile temperature were also investigated.

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Radionova, L. V., R. A. Lisovskiy, A. S. Svistun, and I. N. Erdakov. "Change in Mechanical Properties During Drawing of Wire from Ni 99.6." Materials Science Forum 1052 (February 3, 2022): 358–63. http://dx.doi.org/10.4028/p-o90yv1.

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This paper presents the results of a study of changes in mechanical properties, namely tensile strength, yield strength and elongation when drawing a wire from NP2 nickel (Ni 99.6). The wire samples taken along the drawing route were tested for tension. Based on the test results obtained, graphs of changes in tensile strength, yield strength and elongation were plotted depending on cold work. The approximation of the graphs made it possible to obtain equations for the change in tensile strength (UTS), yield strength (0.2 US) and elongation (δ) depending on cold work (ɛ∑). The obtained dependences are recommended to be used to predict the mechanical properties of nickel wire during drawing and when developing software for designing resource-saving drawing routes.

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Rani, Annu, Jayant Singh, T. P. Singh, Ajit Kumar, and Mukesh Kumar Choudhary. "The Comparison of Tensile Strengths of Different Tree Species and Their Evaluation in Agricultural Tools." Archives of Current Research International 24, no. 5 (2024): 718–27. http://dx.doi.org/10.9734/acri/2024/v24i5746.

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This study evaluates the tensile properties of various timber species used in agricultural implements, focusing on their tensile strength and elongation characteristics. Understanding these properties is crucial for selecting suitable timber for different applications, ensuring durability and performance under mechanical stress. The species analyzed include Yellow Teak, Red Cedar, Teak, Lebbeck, Java Plum, Eucalyptus, Margosa, Mango, Sal, and North Indian Rosetimber. The tensile properties were determined using the IS 1708 standard on a servo-controlled universal testing machine. Results showed that Sal exhibited the highest tensile strength and elongation, making it the Most Intense and flexible timber with consistent properties. Margosa also demonstrated high tensile strength and moderate elongation with very low variability, indicating reliable performance. Eucalyptus and North Indian Rose timber presented Intense and moderately flexible properties with consistent material characteristics. Teak, known for its strength and high elongation, combines robustness and flexibility, while Red Cedar showed moderate tensile strength but higher elongation, offering greater flexibility. Yellow Teak, although reasonably Intense, had lower elongation, indicating less flexibility. Lebbeck was Intense and highly flexible but showed significant variability in tensile strength. Mango exhibited moderate tensile strength and elongation with low variability, suggesting consistent performance. Java Plum had the lowest tensile strength and moderate elongation, indicating it is less Intense and not very flexible. This comprehensive analysis aids in the selection of optimal timber for agricultural applications, enhancing the efficiency, reliability, and sustainability of agricultural implements.

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Chi, Xuemin, and Shuo Han. "Effects of Servo Tensile Test Parameters on Mechanical Properties of Medium-Mn Steel." Materials 12, no. 22 (2019): 3793. http://dx.doi.org/10.3390/ma12223793.

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As a new type of third-generation automotive steel with high strength and plasticity, medium-Mn steel (MMnS) has been widely used in automotive industries for its excellent properties. In recent years, servo stamping technology for high-strength metal forming is a hot topic due to its good performance in forming under complex processing conditions, and servo parameters determine the forming quality. In this paper, experiments considering tensile speed and position where speed changes (PSC) were carried out on MMnS to investigate the influences of tensile parameters on mechanical properties including strength and total elongation (TE). The results show that PSC does not significantly impact total elongation. Initial tensile speed (ITS) and final tensile speed (FTS) significantly impact the total elongation. The interaction between all tensile parameters can impact total elongation. Two artificial neural networks, back propagation neural network (BPNN) and radial basis function neural network (RBFNN), were used to establish analytical models. The results of supplemental experiment and residual analysis were conducted to verify the accuracy of the analytical models. The BPNN has a better performance and the analytical model shows that with the increase of PSC, it has a slight impact on the changes of optimal and minimum total elongation, but the combinations of tensile parameters to obtain total elongations higher than 40% change significantly.

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Liang, Ji-Zhao. "Effects of graphene nano-platelets size and content on tensile properties of polypropylene composites at higher tension rate." Journal of Composite Materials 52, no. 18 (2017): 2443–50. http://dx.doi.org/10.1177/0021998317746478.

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The influence of graphene nano-platelets size and content on tensile properties of polypropylene composites was investigated by means of a universal testing machine under room temperature and tension rate 300 mm/min. The results showed that the Young’s modulus increased with increasing graphene nano-platelets weight fraction, the tensile yield strength and the tensile fracture strength increased when graphene nano-platelets weight fraction was lower than 0.4 wt.%, and then varied slightly with increasing graphene nano-platelets weight fraction; while the tensile elongation at break decreased with increasing graphene nano-platelets weight fraction. In addition, the difference in tensile yield strength, tensile fracture strength, and tensile elongation at break between the composites reinforced separately with different size graphene nano-platelets was not significant under these experimental conditions; this could be attributed to the interfacial layer between the filler and the matrix could transfer some stress under tensile load.

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Wu, Shao Hua, Xu Hong Guo, Gao Lian Shi, and Xing Huang. "Research on the Rules of Influence of Austempering Parameters on the Tensile Strength and Elongation of ADI." Applied Mechanics and Materials 488-489 (January 2014): 115–20. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.115.

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select ADI commonly used in engineering, set 15 sets of austempering parameters and research on the rules of their influence on the tensile strength and elongation of ADI. Through the tensile test, use ANSYS Workbench to simulate the process of tensile measurement and compare the experimental data. The results show that: longer austenitizing time leads to smaller tensile strength, whereas the elongation remains unchanged. The tensile strength reduces linearly as the austempering temperature rises while the elongation first increases and then reduces as the austempering temperature rises and peaks at 350°C. The austempering time has little influence on elongation.

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Vadivambal, Rajagopal, Vellaichamy Chelladurai, Fuji Jian, and Digvir Jayas. "Tensile strength and elongation of hemp and sisal ropes at different temperatures." Canadian Biosystems Engineering 57, no. 1 (2015): 3.9–3.12. http://dx.doi.org/10.7451/cbe.2015.57.3.9.

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Singh, Brijpal, Zahid A. Khan, A. N. Siddiquee, Sachin Maheswari, and Satish Kumar Sharma. "Effect of Flux Composition on the Percentage Elongation and Tensile Strength of Welds in Submerged Arc Welding." Archive of Mechanical Engineering 63, no. 3 (2016): 337–54. http://dx.doi.org/10.1515/meceng-2016-0019.

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Abstract This experimental study reveals the effects of CaF2, FeMn and NiO additions to the base fluxes on tensile strength and percentage elongation of the weld metal. The aim of this study is to develop suitable flux for mild steel for high tensile strength, impact strength and ductility. Bead on plate welds were made using submerged arc welding process. Mathematical model for percentage elongation and UTS of mild steel welds were made. The elements transfer to the welds have been correlated with the above mechanical performance characteristics. The effect of oxygen content on weld elongation and UTS also has been deduced. This study shows that CaF2 and NiO are the significant factors for tensile strength while FeMn is not significant for tensile strength. However, for elongation besides CaF2, the interaction of CaF2 and FeMn was also found significant. The effects of basicity index of the flux and carbon equivalent of the welds on tensile strength and percentage elongation of the welds have also been evaluated.

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Abdullah, Bulan, Siti Khadijah Alias, A. Jaffar, Abd Amirul Rashid, M. Haskil, and A. Ramli. "Tensile Strength Properties of Niobium Alloyed Austempered Ductile Iron on Different Austempering Time." Advanced Materials Research 457-458 (January 2012): 1155–58. http://dx.doi.org/10.4028/www.scientific.net/amr.457-458.1155.

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This study focused on tensile strength properties inclusive of ultimate tensile strength and elongation values of niobium alloyed ductile iron in as cast and austempered conditions. The tensile specimens were machined according to TS 138 EN 10002-1 standard. Austempering heat treatment was conducted by first undergoing austenitizing process at 900°C before rapidly quenched in salt bath furnace and held at 350°C for 1 hour, 2 hours and 3 hours subsequently. The findings indicated that austempering the samples for 1 hour had resulted in improvement of almost twice of the tensile strength in niobium alloyed ductile iron. Improvement of elongations values were also noted after 1 hour austempering times. Increasing the austempering holding times to 2 hour and 3 hours had resulted in decrement in both tensile strength and elongations values.

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Pei, J. F., C. Z. Cai, X. J. Zhu, and G. L. Wang. "Investigation on the Processing-Properties of Hot Deformed TA15 Titanium Alloy via Support Vector Regression." Materials Science Forum 689 (June 2011): 134–43. http://dx.doi.org/10.4028/www.scientific.net/msf.689.134.

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According to an experimental dataset on the tensile strength and elongation of TA15 titanium alloy under different hot deformation process parameters including temperature, strain, strain rate and cooling condition, support vector regression (SVR) combined with particle swarm optimization (PSO) for its parameter optimization, is proposed to establish a model for prediction of the tensile strength and elongation of hot deformed TA15 titanium alloy. For tensile strength, the mean absolute percentage error (MAPE) achieved by SVR is 0.65% and 0.68% for the training and test set, respectively. At the same time, the MAPE for elongation achieved by SVR is 1.51% and 3.36% for the training and test set, respectively. The MAPEs for both tensile strength and elongation achieved by SVR are much smaller than those of BPNN by using identical training and test samples. Accordingly, the established SVR model was adopted to illustrate the relationships among tensile strength, elongation, and the process parameters. From the 3D surface of tensile strength vs. temperature and strain rate, it is found that to reach a higher tensile strength, a strain rate lower than 0.01s-1 is required, and a lower strain will be helpful for achieving the maximum elongation. These suggest that SVR as a novel approach has a theoretical significance and potential practical value in fabrication of TA15 titanium alloy with desired properties.

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Li, Xiangyu, Fugang Li, Minzu Liang, Kefan Zhang, and Zhandong Tian. "Research on Dynamic Constitutive Model and Fracture Characteristics of Two High Strength Steels." Journal of Physics: Conference Series 2168, no. 1 (2022): 012016. http://dx.doi.org/10.1088/1742-6596/2168/1/012016.

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Abstract 58SiMn and 50SiMnVB are commonly used shell materials in bombs, and their dynamic constitutive model and fracture properties directly determine the mass distribution of the bomb. Tensile tests were carried out on two high-strength steels, and the parameters of the yield point, tensile strength and plastic failure strain as well as the John-Cook model were determined. The fracture morphologies of the two steels in the quasi-static tension and in the dynamic tension were analyzed. The research results show that the yield strength of 58SiMn steel remains unchanged with increasing strain rate. The yield strength and tensile strength of 50SiMnVB increase as the rate of elongation increases, and the ability to plastically deform decreases, which shows the properties of embrittlement under high speed loading. With the same elongation rate, 50SiMnVB steel has higher strength and toughness. 58SiMn steel is a tensile brittle fracture from a macroscopic point of view and a quasi-split fracture from a microscopic point of view; 50SiMnVB steel is a mixed lap shear fracture under axial tensile load. With increasing loading rate, the tensile fracture tends to pure shear fracture.

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Nakamura, Naotaka, Ken-ichiro Mori, Hiroki Okada, and Yohei Abe. "Punching test for estimating tensile strength and total elongation of steel sheets." International Journal of Advanced Manufacturing Technology 114, no. 5-6 (2021): 1847–58. http://dx.doi.org/10.1007/s00170-021-06898-7.

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AbstractA punching test for simply estimating the tensile strength and total elongation of steel sheets and formed parts was proposed. The tensile strength and total elongation were estimated from the shear stress at the maximum punching load and percentage of the burnished depth at the sheared edge of the slug measured without cutting, respectively. For a variety of steel sheets with a range of the tensile strength from 360 to 1500 MPa, linear functions for the estimation were experimentally obtained. The correlation of the estimated tensile strength of the steel sheets with the measured one from the uniaxial tensile test was considerably high, and the correlation of the estimated total elongation was high. The distributions of tensile strength and total elongation for hot- and cold-stamped parts were estimated. The proposed punching test is available under not only a laboratory environment but also a factory environment.

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Maghfiroh, Laelatun, Kartini Fauziah Hanum, Endaruji Sedyadi, Irwan Nugraha, and Fatchul Anam Nurlaili. "Synthesis and Characterization of Biodegradable Plastic with Basic Materials of “Singkong Onggok” - Pectin Peel of “Jeruk Bali” (Citrus Maxima) – Plasticizer." Proceeding International Conference on Science and Engineering 2 (March 1, 2019): 201–5. http://dx.doi.org/10.14421/icse.v2.86.

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Biodegradable plastic made from pectin pell of “jeruk bali” has been carried out. Pectin is obtained by extraction methods and for the manufacture of biodegradable plastics with hot-blending methods. The characteristics of the mechanical biodegradable plastics are determined by tensile strength and elongation, and biodegradation test of biodegradable plastics. The results of manufacture biodegradable plastic with the addition of pectin 5g was the best result with a tensile strength value of 195.35 MPa, and an elongation value of around 15.73 - 33.40%. Plastics with the variation of sorbitol starch composition as much as 1.5 g with 1 ml sorbitol each having a tensile strength of 61.29 MPa and elongation value of 14.30%. Plastic with a variation of 1.5 ml sorb itol has a tensile strength value of 118.93 MPa and an elongation value of 16.73%. Plastic with a variation of 2 ml sorbitol has a tensile strength value of 79.67 MPa and an elongation value of 17.63%.

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Cui, Ya Peng, Zi Yong Chen, Xiao Zhao Ma, Ying Ying Liu, Zhi Lei Xiang, and Li Hua Chai. "Microstructures and Mechanical Properties of a New Type of High Temperature Titanium Alloy." Materials Science Forum 993 (May 2020): 208–16. http://dx.doi.org/10.4028/www.scientific.net/msf.993.208.

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The microstructures and mechanical properties of a new type near α high temperature titanium alloy Ti-6.5Al-2.5Sn-9Zr-0.5Mo-0.25Si-1Nb-1W-0.3Re (wt. %) (denoted as TA6.5) were investigated. It was observed that the microstructure of forged TA6.5 mainly consisted of deformed lamellar α phase, small amount of equiaxed α phase, and residual β phase, exhibiting high strength and comparatively low elongation. Three different heat treatments processes were performed on forged TA6.5. The results showed that all heat treated alloys displayed high tensile strengths, and the values of strength parameters were almost unchanged with the increasing solution temperature, ascribing to the combination effects of decreasing primary α phase and increasing contents and widths of secondary α phase and lamellas. The tensile elongations of heat treated alloys tested at 650 °C decreased slightly with the increasing solution temperature, which is due to the increased width of secondary α lamellas and the generation of coarse grain boundary α phase. TA6.5 treated in the process of 990 °C/1 h/AC+700 °C/4 h/AC exhibited excellent comprehensive mechanical properties, i.e. the ultimate tensile strength of 829 MPa, yield strength of 707 MPa and elongation of 18.73% respectively.

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Safitra, Edwin Rizki, and Idra Herlina. "Pembuatan film plastik biodegradable dari limbah kulit kopi dengan penambahan kitosan/gliserol." Journal of Science and Applicative Technology 4, no. 1 (2020): 38. http://dx.doi.org/10.35472/jsat.v4i1.205.

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Biodegradable plastic production has been developed for a long time by researchers. Data from Ministry of Industry in 2017 stated Indonesia's plastic production reached 3.9 million tons/ year. In this study, the raw materials used came from untapped waste, namely coffee skin, biodiesel-waste glycerol and shrimp-shells chitosan. In this research, biodegradable plastic films have been produced with the addition of glycerol and coffee skin waste with chitosan concentration variations of 0, 2, 4, 6, and 8%. After the optimum conditions were obtained by comparing the elongation and tensile strength values, then the variations in coffee skin waste were added with a weight of 0, 2, 4, 6, and 8 g. Tensile strength and elongation values with variations of chitosan were 0.2-1.87 MPa and 0.22-0.15%, respectively. Whereas the variation of tensile strength and elongation coffee skins were 1.8-0.27 MPa and 0.14-0.2%, respectively. The optimum conditions for producing biodegradable plastic films were obtained with variations of chitosan 4% and 2 g coffee skin with tensile strength and elongation values of 0.98 MPa and 0.16%. The tensile strength and elongation data produced from biodegradable plastic was still below the standard value of commercial plastic or synthetic plastic (HDPE) with values of tensile strength and elongation of 28.64 MPa and 6.5186% respectively.

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Du, Yong Qiang, Jian Zheng, and Jun Hui Yin. "Macroscopic and Microscopic Mechanical Properties of HTPB Coating in Solid Rocket Motor under Cyclic Tension." Key Engineering Materials 842 (May 2020): 10–15. http://dx.doi.org/10.4028/www.scientific.net/kem.842.10.

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Hydroxyl-terminated polybutadiene (HTPB) coating is continuously affected by environment/load spectrum during storage, and its macro and micro mechanical properties will deteriorate. Therefore, the cyclic tension test of HTPB coating was carried out with the elongation of HTPB coating was 5%, 10% and 15%, the tensile rate was 50mm/min, 100mm/min and 500mm/min, respectively, and the tensile times was 1000, and the macro and micro mechanical properties of the samples after cyclic tension were tested. The results show that the maximum stress that can be reached by each cyclic tension decreases with the increase of cyclic times, which proves that stress relaxation occurs. After cyclic tension, the tensile strength and cross-linking density of HTPB coating decrease with the increase of elongation and raise with the increase of tensile rate. There is a good linear correlation between cross-linking density and tensile strength.

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Sakai, Naoto, Kunio Funami, Masafumi Noda, Hisashi Mori, and Kenji Fujino. "Influence of Grain Size on Mechanical Properties of AZX311 Alloy." Materials Science Forum 753 (March 2013): 473–76. http://dx.doi.org/10.4028/www.scientific.net/msf.753.473.

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In the present study, the grain refinement, grain growth behavior, and tensile properties of rolled and annealed AZX311 Mg alloys were investigated. The yield strength and ultimate tensile strength of the rolled material were 360 MPa and 370 MPa, respectively, and the total elongation was 5%. When annealing was performed at 423 K for 1hr, the yield strength and ultimate tensile strength were unchanged, but the elongation increased to 10%. Furthermore, the strength and elongation did not change for annealing temperatures of 473–673 K owing to Al2Ca precipitations.

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Luo, Yong Yue, Qing Huang Wang, Chang Jin Yang, Can Zhong He, Yue Qiong Wang, and Zheng Peng. "Effect of Calcium Stearate Concentration on Tensile Properties of Epoxidized Natural Rubber." Applied Mechanics and Materials 117-119 (October 2011): 1027–31. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.1027.

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The tensile strength and elongation at break of epoxidized natural rubber (ENR) was investigated by adding different concentration of calcium stearate. Two grades of epoxidized natural rubber (ENR), namely, ENR 25 and ENR 40 were used as model materials. Semi-efficient vulcanization (semi-EV) was used throughout the study. The tensile property of unaged and aged ENR vulcanizates was determined by using U-CAN electron tensile testing machine. Results indicate that tensile strength and elongation at break of unaged ENR 25 and ENR40 vulcanizates increase gradually with increasing concentration of calcium stearate up to about 1phr of calcium stearate and after which, the tensile strength and elongation at break drop with a further increase in calcium stearate loading. For a similar alcium stearate concentration, the tensile strength and elongation at break of ENR 40 vulcanizates exhibits a consistently higher value than that of ENR 25 vulcanizates, which is due to the higher crosslink density of ENR40 which contains more epoxide groups than ENR 25. For aged samples, the addition of calcium stearate could enhance the tensile strength and elongation at break of aged samples. Percentage retention of tensile strength and elongation at break also gradually increases with calcium stearate loading. That means that the incorporation of calcium stearate is found to improve the aging resistance of ENR vulcanizates. This is because calcium stearate neutralizes sulfur acids which can catalyze ring-opening of expoxide groups via ether crosslinks.

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Maryati, T., T. Nugroho, Sundari, and S. H. C. Dewi. "Effect of fatliquor level on the physical quality of Indonesian rabbit fur leather." IOP Conference Series: Earth and Environmental Science 902, no. 1 (2021): 012021. http://dx.doi.org/10.1088/1755-1315/902/1/012021.

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Abstract This study aimed to evaluate the effect of fatliquor level on the physical quality of Indonesian rabbit fur leather. A total of 15 sheets of Indonesian local rabbit leather (30 cm long and 26 cm wide) were randomly divided into 5 treatments with 3 replicates. The five treatments were level of fatliquor: 5%, 10%, 15%, 20%, and 25%. In this study, the physical quality of rabbit fur leather was measured in tension, elongation, tensile strength, and tear strength. Data were analyzed using analysis of variance followed by Duncan’s New Multiple Range Test. Level of fatliquor affects (P<0.05) softness, elongation, tensile strength, and tear strength of rabbit fur leather. The use of fatliquor up to 20% increased the rabbit leather softness and elongation, but there was a decrease at 25%. The use of 10% fatliquor produces the highest tensile strength. The highest tear strength resulted from the use of fatliquor levels of 5% and 15%. It is concluded that using 20% fatliquor on the fatliquoring process of rabbit fur leather tanning produces the best physical quality.

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Purnavita, Sari, Dyionisius Yoga Subandriyo, and Ayu Anggraeni. "Penambahan Gliserol terhadap Karakteristik Bioplastik dari Komposit Pati Aren dan Glukomanan." METANA 16, no. 1 (2020): 19–25. http://dx.doi.org/10.14710/metana.v16i1.29977.

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Penelitian ini bertujuan untuk mengetahui pengaruh rasio glukomanan dan pati aren dengan penambahan gliserol terhadap karakteristik bioplastik yang dihasilkan. Pembuatan bioplastik dilakukan dengan mencampurkan larutan glukomanan dan larutan pati aren, selanjutnya dilakukan penambahan gliserol dan poli vinil alkohol. Campuran tersebut dipanaskan pada suhu 80°C selama 20 menit, hasil pencampuran kemudian dimasukkan cetakan dan dikeringkan dengan oven hingga menjadi lembaran, Selanjutnya bioplastik tersebut diuji karakteristiknya yang meliputi ketahanan air, tensile strength dan tensile elongation. Rasio glukomanan terhadap pati aren yaitu 1:0,5 ; 1:1 ; 1:1,5 ; dan 1:2 Serta jumlah penambahan gliserol yaitu : 0 ml dan 10 ml. Hasil penelitian menunjukkan bahwa berbagai rasio glukomanan dan pati aren dengan penambahan gliserol berpengaruh terhadap karakteristik bioplastik. Pada penambahan gliserol 0 ml (tanpa gliserol), komposit bioplastik dengan perbandingan glukomanan : pati aren sebesar 1:1 menghasilkan nilai ketahanan terhadap air yang tertinggi , nilai tensile strength yang cukup tinggi, dan morfologi yang baik, tetapi nilai tensile elongation rendah. Sedangkan pada percobaan dengan penambahan gliserol 10 ml, komposit bioplastik dengan perbandingan glukomanan : pati aren sebesar 1:1 menghasilkan nilai tensile elongatiom yang tertinggi, morfologi bagus tetapi nilai tensile strength dan ketahanan airnya rendah. Aim of this research to determine the effect of glucomannan ratio and sugar palm starch with the addition of glycerol to the bioplastic characteristics. Making of bioplastics by mixing glucomannan solution and sugar palm starch solution, then addition of glycerol and polyvinyl alcohol. The mixture is heated at 80° C for 20 minutes, the result of mixing afer that put into a mold and dried in the oven until it becomes a sheet. After that, the characteristics of the bioplastics were tested which included water resistance, tensile strength and tensile elongation. The ratio of glucomannan to sugar palm starch is 1:0.5; 1:1; 1:1,5; and 1:2 And the amount of glycerol addition are: 0 ml and 10 ml. The results showed that the ratio of sugar palm starch and glucomannan with the addition of glycerol affected the bioplastic characteristics. At the addition of glycerol 0 ml, bioplastic composites with glucomane: palm starch ratio of 1:1 produce the highest water resistance value, high tensile strength value, and good morfology but low tensile elongation value. Whereas in experiments with the addition of 10 ml of glycerol, bioplastic composites with a glucomane: palm starch ratio of 1:1 produced the highest tensile elongatiom value and good morfology result but the value of tensile strength and water resistance was low

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Zheng, Yan Hong, Yu Zhai, Jian Mei Guo, Hong Yan Yu, Lian Cai Wang, and Xin Miao Zeng. "Effects of ⁶⁰Co-Irradiation on Tensile Properties of Polyimide Based on 2,2-Bis(3-amino-4-hydroxyphenyl)hexafluoropropane." Advanced Materials Research 554-556 (July 2012): 323–26. http://dx.doi.org/10.4028/www.scientific.net/amr.554-556.323.

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Radiation effects on polyimide (PI) films were studied with different irradiation doses by 60Co. The PI film were synthesized from 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (Bis-AP-AF) with 3,3',4,4'-Benzophenone tetracarboxylic dianhydride (BTDA). The tensile strength, tensile modulus and elongation at break of the irradiation PI films were measured and compared in order to determine the effect of the irradiation doses on the tensile properties. The results showed that the tensile strength, tensile modulus and elongation at break of the irradiation PI film can be significantly improved by irradiation of 60Co source. The optimum irradiation doses were 50 kGy. The maximum increment of tensile strength, tensile modulus and elongation at break of the irradiation PI film is 37.8%, 45.0% and 95.2%, respectively.

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Huzni, S., I. Ikramullah, and S. Andrian. "Tensile strength characterization of single 1iber imperata cylindrica as potential reinforcement for composite materials." IOP Conference Series: Earth and Environmental Science 1510, no. 1 (2025): 012076. https://doi.org/10.1088/1755-1315/1510/1/012076.

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Abstract Indonesia has abundant biodiversity, including various types of natural fibers that have potential as reinforcement for composite materials. Imperata cylindrica fiber is one of the natural fibers whose potential as composite reinforcement has not been extensively explored. This research aims to characterize the mechanical properties of Imperata cylindrica fiber, specifically tensile strength, elastic modulus, and elongation through single fiber tensile testing. Single fiber tensile testing was conducted using the ASTM D3882 standard. Imperata cylindrica fiber samples were prepared and tested under controlled conditions to obtain data on tensile strength, elastic modulus, and elongation. The test results showed that specimen 9 had the highest average tensile strength of 152.6 MPa and the highest elastic modulus of 684.4 MPa. Specimen 8 showed the highest elongation percentage of 0.324%, indicating superior ductility compared to other specimens. The characterization of mechanical properties of Imperata cylindrica fiber demonstrates its potential use as reinforcement in composite materials. The variation in tensile strength, elastic modulus, and elongation values indicates diverse potential applications, from low-load components to structural applications requiring high strength.

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Zhang, Zhi Lei, Yi He Zhang, and Xiang Hai Meng. "Mechanical Properties of the Regenerated Rubber Prepared by Waste Tire Powders and Fillers." Advanced Materials Research 487 (March 2012): 33–37. http://dx.doi.org/10.4028/www.scientific.net/amr.487.33.

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Waste tire powder (WTP) was reclaimed mechanically in presence of a new composite additive which consists of reinforcing materials (RM) and toughening materials (TM), and the effects of technical parameters and additives were investigated. According to the orthogonal experiments and the range analysis, the final ranking of the significance of factors in tensile properties was determined to be as follows: TM content > curing temperature > sulfur content > TBBS content > RM content (for tensile strength) and sulfur content > curing temperature > TBBS content > TM content > RM content (for elongation at break). The optimal conditions for tensile strength and elongation at break were determined respectively. Tensile strength and elongation at break tended to decrease after an initial ascent with the RM content increased. An apparent ascent of elongation at break was observed as TM content increases. Tensile strength increased first, and then decreased.

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Zhang, Ying Bo, Hong Gao, Gao Feng Quan, and Zhao Ming Liu. "Microstructures and Mechanical Properties of Mg-Al-Zn-Y Alloys." Advanced Materials Research 311-313 (August 2011): 697–701. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.697.

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The microstructures and mechanical properties of quasicrystal reinforced Mg-Al-Zn-Y alloys with different Y and Zn contents were investigated. The results show that I-phases and Mg17Al12 phases form in all alloys. When Y content exceeds 1.0 at.%, the blocky Al2Y particles form, and it is disadvantageous to improve tensile strength and elongation rate. The tensile failure modes of Mg-Al-Zn-Y alloys are quasi-cleavage fracture. The tensile strength and elongation rate increase firstly and then decrease with increasing Y and Zn contents. When Y content reaches 1.0 at.%, the tensile strength and elongation rate achieve the highest values.

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Ma, Teng Di, Yong Su, Qin Wang, and Jin Lei Li. "Effect of Fe on the Performance of Rare Earth Aluminum Conductor." Advanced Materials Research 750-752 (August 2013): 711–14. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.711.

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The effect of Fe on the performance of rare earth aluminum conductor was investigated in this paper. The tensile strength, elongation and conductivity of the alloys were tested. The study results showed that Fe can significantly increase the tensile strength and elongation of the aluminum rod. However, with the increasing content of Fe, the conductivity of the aluminum rod reduced more obviously. In comprehensively considering the tensile strength, elongation and conductivity, the alloy gained better mechanical properties and conductivity when ω (Fe) was 0.3%.

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Fikri, Miftahul, Iwa Garniwa Mulyana K, Christiono Christiono, and Andi Amar Thahara. "Optimization of Mechanical Performance Polymer Insulators SiR Using CFA Waste as Filler." Jurnal IPTEK 29, no. 1 (2025): 1–10. https://doi.org/10.31284/j.iptek.2025.v29i1.4923.

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This study investigates the use of coal fly ash as a filler in Room Temperature Vulcanization (RTV) silicone rubber to enhance its mechanical properties. Fly ash, which contains silica, has the potential to improve the strength of the polymer. The research aims to optimize the composition of fly ash in RTV silicone rubber composites using the quadratic regression method, focusing on tensile strength and elongation performance. Tests were conducted according to ASTM D 412 standards for tensile strength and elongation. The results showed that the optimal fly ash composition for tensile strength was 38.11%, resulting in a tensile strength of 0.19 and a Mean Absolute Percentage Error (MAPE) of 13.64%. For elongation, the optimal composition was 14.95%, with an elongation value of 192.094 and a MAPE of 24.75%. This study provides valuable insights into how fly ash can be used to enhance the mechanical properties of RTV silicone rubber composites.

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Sui, Yan Wei, Ai Hui Liu, Bang Sheng Li, Jing Jie Guo, and Wei Biao Ju. "Relationship between Microstructures and Mechanical Properties of Ti-6Al-4V Alloy in Centrifugal Casting." Advanced Materials Research 295-297 (July 2011): 496–99. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.496.

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Ti-6Al-4V alloy castings are made by means of induction melting technology. The relationships between grain size and tensile strength, yield strength, elongation percentage, investigated for Ti-6Al-4V alloy castings. The results show that the relationships between grain size, and tensile strength, yield strength, specific elongation, meet the Hall-Petch equation.

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Jamali, Qadir Bakhsh, Muswar Ali Farhad Siyal, Abdul Sattar Jamali, Muhammad Sharif Jamali, Arshad Hussain, and Fida Hussain. "Analysis of Tensile Strength, Hardness and Impact Energy of SAE1040 Steel Using Heat Treatment Processes." Quaid-e-Awam University Research Journal of Engineering, Science & Technology 18, no. 02 (2020): 33–37. http://dx.doi.org/10.52584/qrj.1802.05.

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A systematic study was carried out to improve the mechanical properties of medium carbon steel grade SAE 1040 by heat treatment processes. Test specimen were prepared according to ASTM standards. Test specimen were heat treated in Gas furnace at austenitization temperature of 700C to obtain fully austenite structure, soaked for 90 minutes, cooled in air and furnace, and quenched in water separately. Mechanical properties such as hardness, tensile strength, yield strength, breaking strength, Young’s Modulus, elongation and impact energy were investigated in this study. It was observed that water quenching enhances materials’ hardness, tensile strength, yield strength, breaking strength and Young’s Modulus while reducing the elongation and impact energy as compared with untreated specimen. Furnace cooling decreases materials’ hardness, tensile strength, yield strength, breaking strength, Young’s Modulus while increasing the elongation and impact energy as compared with untreated specimen. Air cooling improved the materials’ mechanical properties such as hardness, tensile strength, yield strength, breaking strength, Young’s Modulus, elongation and impact energy as compared with untreated specimen. The results of this study show that the heat treatment technique greatly influences the mechanical properties of medium carbon steel grade SAE 1040.

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Sui, Yan Wei, Ai Hui Liu, Bang Sheng Li та Jing Jie Guo. "Relationship between Thickness of Lamellar α+β Phase and Mechanical Properties of Titanium Alloy". Advanced Materials Research 311-313 (серпень 2011): 1916–19. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.1916.

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Titanium alloy castings are made by means of induction melting technology. The relationships thickness of lamellar α+β phase and tensile strength, yield strength, elongation percentage, and Vickers-hardness, as well as the effect of tensile property on the Vickers-hardness are investigated for Ti-6Al-4V alloy castings. The results show that the relationships between thickness of lamellar α+β phase, and tensile strength, yield strength, specific elongation, and Vickers-hardness meet the Hall-Petch equation. And the tensile property increases linearly with Vickers-hardness.

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Amran, Mohd, Raja Izamshah, Mohd Hadzley, et al. "The Effect of Binder on Mechanical Properties of Kenaf Fibre/Polypropylene Composites Using Full Factorial Method." Applied Mechanics and Materials 695 (November 2014): 709–12. http://dx.doi.org/10.4028/www.scientific.net/amm.695.709.

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The effect of maleated polypropylene (MAPP) as binder on the mechanical properties of kenaf fibre/polypropylene (KF/PP) composites is studied. Ratios between kenaf fibre and PP having 10:90, 30:70 and 50:50 in weight ratio were selected. Further, MAPP having 1, 3 and 5 percent in percentage of weight ratio was mixed in KF/PP composites. Hot press machine was used to produce tensile test samples of KF/PP composites. The mechanical properties that are tensile strength, tensile modulus and elongation at break of KF-PP composites were obtained from tensile test result. It is found that the tensile strength and tensile modulus increase with increasing the kenaf fibre loading and higher percentage of MAPP. Further, the elongation at break for KF/PP composites shows lower result when increasing of kenaf fibre loading. However, when percentage of MAPP added in KF/PP composites increases, the elongation at break increased slightly. Thus, result shows that kenaf fibre/PP composites with binder were better in tensile strength, tensile modulus however the elongation at break shows weak result unless the binder was added.

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Koyun, Ahmet, Baris Koksal, Esma Ahlatcioglu, and A. Binnaz Hazar Yoruc. "Statistical Evaluation Tensile Properties of High-Density Polyethylenes." Advanced Materials Research 445 (January 2012): 213–18. http://dx.doi.org/10.4028/www.scientific.net/amr.445.213.

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The mechanical properties, among all the properties of plastic materials, are often the most important properties because virtually all service conditions and the majority of end-use applications involve some degree of mechanical loading [1]. In the present work three different commercial polyethylene materials are tensile tested at four or five different tensile rates and two or three temperatures. Tensile test results against tensile rate include stress at 0.5 % elongation, tensile strength, yield strength, modulus of elasticity, elongation at yield and % elongation are determined. It is concluded that the structure, chain lengths and branching rates of polymer matrix significantly effected tensile test curve characteristic.

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Haga, Toshio, Shinichiro Imamura, Ryota Miwa, and Hiroshi Fuse. "Semisolid Casting and Die Casting of Al-4.8%Mg-2%Si Alloy." Solid State Phenomena 327 (January 10, 2022): 172–77. http://dx.doi.org/10.4028/www.scientific.net/ssp.327.172.

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An aluminum alloy, Al–4.8%Mg–2%Si, was cast by die casting and thixocasting, and the properties of the cast specimens were investigated. When the poured molten metal temperature was lower than 640 °C during die casting, it was lower than the liquidus temperature, and the metal became a semisolid slurry in the sleeve of the die casting machine; this fulfills the conditions for rheocasting. A tension test was conducted to investigate the effects of semisolid casting on the mechanical properties of Al–4.8%Mg–2%Si. The ultimate tensile strength and elongation of the ingots cast by die casting and rheocasting were affected by the size of ingot. When the ingot had a circular base of 4.5 mm diameter, the ultimate tensile strength and elongation were excellent; however, when the cross section of the ingot was a square with a side length of 20 mm, the tensile strength and elongation were inferior. The thixocasting was conducted using square ingots with a side length of 20 mm, and the tensile strength and elongation were poor in this case as well. The results of this study demonstrate that semisolid casting cannot improve the mechanical properties of Al–4.8%Mg–2%Si ingots with a high thickness. Semisolid casting cannot produce fine-grained Mg2Si, and the mechanical properties of the material could not be improved by this casting method.

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Zhang, Xue Fei, Ren Guo Guan, Tong Cui, and Tian Guo Zhou. "Microstructure and Mechanical Properties of Al-Mg-Sc Alloy Processed by Semi-Solid Continuous Casting-Extrusion." Advanced Materials Research 299-300 (July 2011): 139–42. http://dx.doi.org/10.4028/www.scientific.net/amr.299-300.139.

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High tensile strength Al-3Mg-0.5Sc alloy wires can be produced by a method called semi-solid continuous casting-extrusion and on-line solution process (CCES). The effects of artificial aging and the combination of the artificial aging and cold drawing on the microstructures and properties of alloy wires were respectively investigated. TEM observations reveal that a large number of dislocations and Al3Sc particles distributed in the Al-matrix of Al-3Mg-0.5Sc alloy produced by semi-solid CCES.After directly artificial aging (DAA), the tensile strength is 353MPa and elongation is 19.9%; After cold drawing following artificial aging (CDAA), the tensile strength is 378MPa and elongation is 17.7%; After artificial aging following cold drawing (AACD), the tensile strength is 435MPa and elongation is 10.4%.

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Zhang, Rong Hua, Yong An Zhang, and Bao Hong Zhu. "Study of Microstructure and Mechanical Properties of Extrued Spray Forming Al-8.5Fe-1.3V-1.7Si Alloy." Advanced Materials Research 750-752 (August 2013): 671–74. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.671.

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In this paper, the Al-8.5Fe-1.3V-1.7Si alloys were fabricated by spray forming and extrusion process. The microstructure and mechanical properties of the alloy were investigated by means of metallographic, scanning electron microscope and tensile test. The results indicate that the tensile strength of the extrued alloys can reach 353MPa, the yield strength 300MPa, elongation 19.12%, at room temperature. At 250°C, the tensile strength of the extrued alloys can reach 221MPa, the yield strength 208MPa, elongation 13.33%.

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Ren, Kang Kang, Yong Lin Kang, and Shuai Zhu. "Effect of Partitioning Time on the Microstructure and Mechanical Properties of Q&P Steels." Materials Science Forum 749 (March 2013): 303–7. http://dx.doi.org/10.4028/www.scientific.net/msf.749.303.

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The microstructure and properties of Q&P steel were studied by means of tensile test, OM and SEM after simulating heat treatment process in salt bath furnace. The results showed that the main microstructure of Q&P steel was lath martensite and retained film austenite. With the increase of partitioning time, the morphology of the parallel martensite lath became clear and ordered. With the trivialness and disorder with massive martensite appearing, the yield strengths and tensile strength decreased initially and then increased. On the other hand, the elongation increased initially and then decreased. This was because of that the retained austenite is unstable at the beginning for low carbon content, and the carbide precipitated after a long partitioning time. Therefore, there was an optimum partitioning time to obtain the best properties combination. Under 250 quenching temperature and 350 partitioning temperature, partitioning time was 60s, the tensile strength and elongation were 1027MPa and 27%, respectively. The product of strength and elongation was up to 27729MPa·%.

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Gu, Xingli, Chunqing Lin, Rendong Liu, Jinyu Guo, and Peng Deng. "Effect of partitioning time on one-step quenching and partitioning steel." Journal of Physics: Conference Series 2368, no. 1 (2022): 012024. http://dx.doi.org/10.1088/1742-6596/2368/1/012024.

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The microstructure and mechanical properties of one-step quenching and partitioning (Q&P) steel with different partitioning time were analyzed. The results shows that the elongation rate rises, tensile strength decreases, the yield strength first declines and then increases with the increasing partitioning time (PT). An optimal combination of strength and ductility is obtained when the samples are partitioned at 2000 s, and the corresponding tensile strength, elongation, and product of strength and elongation are 1022 MPa, 25.1% and 25652 MPa•%, respectively. Besides, no cementite is found in the microstructures.

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Surapunt, Supachai, and Yoshiharu Mutoh. "Tensile and Fatigue Properties of Fe-Cu-C Sintered Steels." Key Engineering Materials 553 (June 2013): 99–102. http://dx.doi.org/10.4028/www.scientific.net/kem.553.99.

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Tensile and fatigue tests of two compositions of steels, Fe-0.6%C-l.7%Cu and Fe-0.8%C-2.1 %Cu sintered at wide range of temperatures from 900°C to 1200°C were carried out to investigate effects of element content and sintering temperature. When the sintering temperature was higher than 1100°C, Fe-0.8%C-2.1%Cu steel exhibited higher density, tensile strength, elongation and fatigue strength compared to the other steel. The higher Cu content results in the higher density because Cu contributes to liquid phase in the sintering process. The higher C content contributes to the higher tensile strength, elongation and fatigue strength due to formation of pearlite phase. When the sintering temperature was lower than 1000°C, density, tensile strength and elongation were low. However, the metal copper phase still remains after sintering.

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Zhou, Chao, Jun Liang, and Bin Wang. "Study on High Temperature Creep Test of P92 Material Based on the Minimally Invasive Technique." Key Engineering Materials 734 (April 2017): 159–67. http://dx.doi.org/10.4028/www.scientific.net/kem.734.159.

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The tensile and creep properties of P92 steel have been studied using a precision tensile and creep test machines for miniature and conventional specimens under various stress level at 625°C. The results showed that the data stability of miniature plate specimens is high whether at room or high temperature tensile tests. Compared with the conventional plate specimens, tensile strength, yield strength and total elongation is slightly lower, the uniform elongation is higher for miniature plate specimens at room temperature. By contrast, the tensile strength and uniform elongation is slightly higher, and the yield strength and total elongation is lower at high temperature. Besides, there had similar creep curves between miniature and conventional specimens, and the creep rupture time and minimum creep rate are closer under the same stress. By comparing the power law creep index and damage tolerance factor at the second creep stage, it can be derived that the creep mechanism is identical for the micro and conventional specimens, which is controlled by the dislocation movement.

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Amanuel, Lami. "Palm leaf sheath fiber extraction and surface modification." Journal of Engineered Fibers and Fabrics 15 (January 2020): 155892502095072. http://dx.doi.org/10.1177/1558925020950724.

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The influence of softening on tensile strength, elongation at break, moisture regain and microscopic morphology of Palm Sheath fiber extracted by chemical degumming using 80% sodium hydroxide; bleached by hydrogen peroxide and softened by silicone emulsion softener was studied. The softened and unsoftened fibers were characterized for their longitudinal view, tensile strength and elongation at break of single fiber by scanning electron microscope (SEM). The single fiber tensile strength and elongation at break were 19.6% and 10.22% respectively. The calculated value of moisture regain and moisture content of the softened fibers was 12.65% and 11.23% respectively. The tensile strength, elongation at break, moisture management of the softened palm sheath fiber was significantly higher. As a result of surface modification microscopic morphology, the treated fiber was also found different. The study result had drawn the significant influence of the surface modification on the forth mentioned properties of the extracted palm leaf sheath fiber.

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Hironaka, Satoshi, Hiroshi Tanaka, and Takashi Matsumoto. "Effect of Si on Mechanical Property of Galvannealed Dual Phase Steel." Materials Science Forum 638-642 (January 2010): 3260–65. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.3260.

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The mechanical properties of galvannealed dual phase steels bearing Si were investigated, and then the effect of Si on work hardening behavior during tensile deformation was discussed. Both tensile strength and yield strength were increased with increasing Si content, especially increasing ratio of tensile strength was larger than that of yield strength. On the other hand, the decrease of uniform elongation was very small with increasing Si content. Therefore, tensile strength and total elongation balance was improved by Si addition. High Si (1.2%Si) steel exhibited higher work hardening rate than low Si (0.01%Si) steel in all strain region. Dislocation cell structures were observed at 8% tensile strain in low Si steel, while dislocation cell structures were scarcely observed and instead, tangled dislocations were dominantly observed in high Si steel. Furthermore, high Si steel exhibited higher the increasing ratio of dislocation density in ferrite during tensile deformation than low Si steel. These results indicated that the formation of dislocation cell structure was retarded by Si addition, which led to the increase of work hardening rate and resulted in the improvement of tensile strength and total elongation balance.

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Bertuzzi, Maria Alejandra, Juan Carlos Gottifredi, and Margarita Armada. "Mechanical properties of a high amylose content corn starch based film, gelatinized at low temperature." Brazilian Journal of Food Technology 15, no. 3 (2012): 219–27. http://dx.doi.org/10.1590/s1981-67232012005000015.

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In the present study, a better knowledge of the influence of plasticizer content, storage relative humidity and film thickness on the mechanical properties of high amylose corn starch based films gelatinized at low temperature, is presented. The mechanical properties, tensile strength and percentage of elongation at break of high amylose corn starch films plasticized with glycerol were evaluated using tension tests. The films exhibited an increase in elongation and a decrease in tensile strength with increasing plasticizer concentration. When the glycerol level was high, some fissures were detected in the dry films, possible due to phase separation (starch-glycerol) phenomena. Film crystallinity is related to the reorganization capacity of the polymer chain, and thus the relative film crystallinity should increase with plasticizer content (glycerol and water). The mechanical properties were found to be strongly dependent on the water content due to the hydrophilic nature of starch films. The influence of moisture sorption on tensile strength was similar to that of plasticization with glycerol. The relationship between polymer chain mobility and water content explained this behavior. Elongation suffered a different effect and maximum values were reached at 45% relative humidity. The final drop in elongation was due to a softening of the structure at high relative humidity. The thicker the film the longer the drying time required, leading to greater relative crystallinity due to the corresponding increase in the possibility for chain reorganization. As a consequence, linear increases in tensile strength and elongation were observed with film thickness over the whole range studied (30 to 100 µm).

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Ling, Long, Theresa Lai, and Raj Malyala. "A Newly Formulated Vinyl Polysiloxane Impression Material with Improved Mechanical Properties." Journal of International Society of Preventive and Community Dentistry 14, no. 3 (2024): 252–59. http://dx.doi.org/10.4103/jispcd.jispcd_165_23.

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Abstract Aim: To evaluate the mechanical properties of a newly formulated vinyl polysiloxane (VPS) impression material. Materials and Methods: Experimental, Capture (S&C Polymer), Express, Imprint 3 and Imprint 4 (3M ESPE), Start VPS (Danville), Honigum (DMG), Virtual (Ivoclar Vivadent), Elite HD+ (Zhermack) were evaluated for tear strength, tensile strength, and elongation at break. Un-nicked specimens with a 90° angle on one side (type C) for tear strength were prepared and tested according to ASTM-D624. Dumbbell-shaped specimens (type 1) for tensile strength and elongation at break were prepared and tested according to ISO 37. All tests were carried out at 500 mm/min on a Shimadzu (AGS-X-10 KN-table top) tester. A one-way analysis of variance (ANOVA) was used to analyze the data. Results: Experimental material showed significantly higher or higher tear strength and elongation at break compared to other impression materials for both light body (LB) and heavy body (HB). For tensile strength, Experimental is similar to most impression materials; however, significantly lower than Imprint 3 and Start VPS for LB. This parameter for HB is higher or significantly higher than other impression materials except Start VPS. Tear strength and tensile strength were not correlated for LB but have a weak or moderate correlation for HB. Elongation at break is inversely proportional to tensile strength moderately for LB; however, there is no or very weak relation for HB. Conclusions: Experimental VPS impression material demonstrated a significantly higher tear strength and adequate tensile strength with higher elongation compared to other commercially available VPS impression materials. Adequate mechanical properties can provide accurate impressions for successful clinical fabrication of restorations. Experimental VPS impression material is suitable for use in dental impressions for fabrication of restorations.

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Sriyana, Herman Yoseph, and Soraya Prastyawati. "SINTESIS PLASTIK BIODEGRADABLE DARI PATI GANYONG DENGAN MODIFIKASI KASEIN SUSU AFKIR DAN PLASTICIZER SORBITOL." Jurnal Pengendalian Pencemaran Lingkungan (JPPL) 6, no. 2 (2024): 61–71. http://dx.doi.org/10.35970/jppl.v6i2.2346.

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Pati ganyong potensial menjadi bahan baku plastik biodegradble karena mempunyai kadar total pati 93,30%, kadar amilosa 42,40% dan amilopektin 50,90% Penelitian bertujuan mempelajari pengaruh rasio pati ganyong dan kasein susu afkir dengan modifikasi sorbitol terhadap karakteristik plastik biodegradable. Variabel penelitian ini adalah rasio pati ganyong dan kasein dari susu afkir (4:0; 3:1; 2:2) dengan pengadukan selama 30 menit pada suhu 75°C dan penambahan sorbitol (2%, 3%, 4%, 5%). Proses pembuatan plastik biodegradable dilakukan dengan menuang larutan plastik biodegradable sesuai variable ke dalam cetakan, selanjutnya dikeringkan menggunakan oven dengan suhu 70°C selama 6 jam dan cetakan dikeluarkan untuk dikeringkan pada suhu kamar selama 24 jam. Plastik yang terbentuk dilakukan uji tensile strength, elongation, biodegradasi, morfologi. Hasil penelitian ini menunjukkan semakin tinggi pati ganyong yang ditambahkan dan semakin turun kasein yang ditambahkan maka mempengaruhi plastik biodegradable terhadap tensile strength semakin naik, elongation semakin naik, dan biodegradasi semakin naik. Semakin kecil rasio pati ganyong dan kasein susu (semakin besar jumlah kasein susu) maka akan meningkatkan nilai tensile strength, elongation, dan kemampuan biodegradasi dari bioplastik yang dihasilkan. Rasio kombinasi pati dan kasein yang terbaik diperoleh pada rasio 4:0 yang memberikan tensile strength tertinggi sebesar 5,48 MPa, elongation tertinggi sebesar 26,67, dan biodegradasi tertinggi sebesar 0,08. Semakin tinggi jumlah sorbitol yang ditambahkan meningkatkan nilai ketahanan air, elongation, biodegradasi. Penambahan sorbitol yang terbaik diperoleh pada konsentrasi 5% yang memberikan elongation 8,57, biodegradasi sebesar 0,11, sedangkan tensile strength yang terbaik diperoleh pada konsentrasi 1% sebesar 3,40 MPa.

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Waruhiu, Patrick W., Simon I. Marandu, and Mussa I. ,. Mgwatu. "Effects of Bending and Re-bending on Mechanical Properties of Locally-Manufactured Steel Rebars." Tanzania Journal of Science 50, no. 1 (2024): 62–74. http://dx.doi.org/10.4314/tjs.v50i1.5.

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Steel rebars experience deformation when subjected to bending and re-bending operations. Subsequently, their microstructures are impaired thus affecting the mechanical properties and leading to failure. This study establishes the effects of bending and re-bending the steel rebars on the mechanical properties. Experiments were conducted to determine the effects of bending and re-bending of the steel rebars. Testing was conducted on Ten virgin and Thirty specimens which were bent and re-bent at 45º, 90º, and 180º, and followed by tensile tests. Yield strength, ultimate tensile strength, elongation, and ultimate tensile strength to yield strength ratio (Rm/Re), were recorded. Results showed the yield strength, ultimate tensile strength, elongation, and Rm/Re of virgin steel rebars varied from 553.62 MPa to 618.49 MPa, 634.39 MPa to 745.68 MPa, 17.6 % to 21.67 %, and 1.14 to 1.19. The yield strength, ultimate tensile strength, elongation, and Rm / Re of bent and re-bent steel rebars at angles of 45º, 90º, and 180º varied from 603.67 MPa to 677.38 MPa, 692.82 MPa to 751.76 MPa, 6.88 % to 19 % and 1.09 to 1.21. It was established that bending and re-bending increase strength and reduce the ductility of the rebars proportionally.

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Wu, Chuan Bao, and Bo Qiao. "URSS/PVA/WP Composite Materials: Preparation and Performance." Advanced Materials Research 968 (June 2014): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amr.968.80.

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A novel kind of environmentally friendly composite materials containing upper part of rice straw segments (URSS), poly (vinyl alcohol) (PVA) and waste paper (WP) were prepared by hot-pressing at 140°C for 10 min. The tensile strength, tensile elongation and hardness of composites were measured. Results showed that the tensile strength and the strength at tensile break of the composites first increased and then decreased with increasing PVA content. Tensile strength was higher than the strength at tensile break at different PVA contents, indicating that URSS/PVA/WP composite materials had certain toughness. Otherwise, URSS/PVA/WP composite materials had higher tensile strength than URSS/PVA composites. The tensile strengths of them were respectively 9.25 MPa and 3.9 MPa when prepared at PVA content of 40%. The hardness of composites lay between 90 and 96. Negligible difference exists in every composite.

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Wei, Zhang, Feng, Xie, Wu, and Cao. "Influence of Polypropylene Fiber on Tensile Property of a Cement-Polymer Based Thin Spray-On Liner." Applied Sciences 9, no. 14 (2019): 2876. http://dx.doi.org/10.3390/app9142876.

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The influence of a polypropylene fiber on the tensile properties of a cement-polymer based thin spray-on liner (TSL) was investigated in this study. Two different contents of fiber were added to the liner, yielding two TSL groups. Tensile tests were performed (in accordance with the ASTM D638 standard) on the two groups of specimens as well as the control group at 1, 7, 14, and 28-day curing. The test result verified the large plasticity and low elastic modulus of the TSL compared with the fiber. SEM examination revealed that fibers lying parallel to the load direction ruptured or were pulled out from the matrix, which was beneficial to the tensile strength, but detrimental to the elongation because of their high stiffness. Other fibers lying perpendicular with the load direction were detrimental to both tensile strength and elongation through aggravating the propagation of the cracks. The tensile strength was improved by fiber incorporation, while the elongation was reduced at all curing. The influence of fibers on tensile toughness was uncertain since tensile toughness depended on strength as well as deformity.

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Yan, Hong, and Yong Hu. "Research on Semi-Solid Y112 Alloy Fabricated by Mechanical Stirring." Advanced Materials Research 139-141 (October 2010): 657–60. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.657.

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Effects of different technological parameters such as stirring temperature, stirring speed and stirring time on the microstructure of semi-solid Y112 alloy were investigated using a self-developed mechanical stirring device in this paper. The results show that the higher of stirring temperature and stirring speed, the finer and more homogeneous the spherical grains, the higher the tensile strength and elongation. If the temperature is too high, the solid grains will be melted, the tensile strength and elongation will be reduced. With the increasing of stirring time, the grains firstly become fine, uniform and round, and then grow up. The tensile strength and elongation firstly increase, and then reduce.

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Gao, Yu Peng, Zhe Wang, Yan Qing Niu, and Zhong Su Ma. "Mechanical Properties of Soy Protein Isolate and Whey Protein Concentrate-Based Films." Advanced Materials Research 573-574 (October 2012): 181–84. http://dx.doi.org/10.4028/www.scientific.net/amr.573-574.181.

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The mechanical properties difference between soy protein isolate-based film and whey protein-based film was researched. The elongation at break, tensile strength of the pure soy protein isolate film both are better than that of the pure whey protein concentrate film, which is respectively 10 times and 25 times. After compounding the property of the whey protein concentrate film ameliorates. The elongation at break, tensile strength of the whey protein concentrate film increases respectively by 9 times and 16 times after the glutin is mixed. The elongation at break, tensile strength of the whey protein concentrate film increases by 1.1 times and 12 times after the chitosan is added.

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Liu, Zhi Chao, Yao Li, and Jun Jie Yang. "Effect of Rare Earth Elements on Microstructure and Mechanical Properties of AZ91D Alloy." Advanced Materials Research 960-961 (June 2014): 87–91. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.87.

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Rare earth Y、Gd、Nd were added to improve the tensile strength, elongation, hardness and microstructure of AZ91D magnesium alloy in this study. The investigation had been undertaken by 8 GWU type resistance furnace, RGM - 50 electronic machine , Vickers ,etc. Results show that a moderate amount of composite adding rare earth can effectively improve the tensile strength of AZ91D alloy, elongation, hardness and the organizational structure, as a rare earth content increased after the first performance decline. When rare earth content is 1.8%, the highest tensile strength up to 276.58mpa, 8.3% elongation. When rare earth content is 2.4%, the hardness is up to 99.36 HV1.96.

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