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Готові списки джерел за темами / Tensile Strength; ANSYS; Transient Thermal Analysis / Статті в журналах

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Tensile Strength; ANSYS; Transient Thermal Analysis.

Статті в журналах з теми "Tensile Strength; ANSYS; Transient Thermal Analysis"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Nagpure, Homeshwar Girirao, and Samir Kumar Nath. "Effect of Change in Startup Cycle Time on Transient Thermal Stresses in Steam Turbine Rotor." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 14, no. 03 (2022): 341–47. http://dx.doi.org/10.18090/samriddhi.v14i03.15.

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Анотація:

During the turbine start stop period, occuring at brief intervals , the temperature of the steam turbine rotor varies. Because of the significant temperature gradients, this shift in temperature causes transitory thermal stresses in the rotor. Changes in material parameters such as thermal expansion coefficient ,modulus of elasticity, thermal conductivity, specific heat, Poisson's ratio, and others cause transient stresses. Thermal and mechanical stresses are applied to the turbine rotor. Before designing the rotor, it is necessary to estimate transient thermal stresses. The finite element stu

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2

Majeed, Majid Hameed. "Effects of Welding Parameters on Temperature Distribution and Tensile Strength of AA6061-T6 Welded by Friction Stir Welding." Journal of Engineering 21, no. 11 (2015): 24–39. http://dx.doi.org/10.31026/j.eng.2015.11.02.

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The present research aims to study the effect of friction stir welding (FSW) parameters on temperature distribution and tensile strength of aluminum 6061-T6. Rotational and traverse speeds used were (500,1000,1400 rpm) and (14,40,112 mm/min) respectively. Results of mechanical tests showed that using 500rpm and 14mm/min speed give the best strength. A three- dimensional fully coupled thermal-stress finite element model via ANSYS software has been developed. The Rate dependent Johnson-Cook relation was utilized for elasto-plastic work deformations. Heat-transfer is formulated using a moving hea

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3

Enuwhure, Efejero Richard, Chinedum Ogonna Mgbemena, and Christopher Okechukwu Izelu. "Development and Characterization of a Remanufactured Motorcycle Clutch Hub from End-of-Life Aluminium Alloy." Asian Review of Mechanical Engineering 13, no. 1 (2024): 27–36. http://dx.doi.org/10.70112/arme-2024.13.1.4238.

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This study aims to employ reverse engineering in the development of the Yamaha CY 80 motorcycle clutch hub using end-of-life (EOL) aluminium alloy obtained from automotive vehicle scraps. The remanufactured motorcycle clutch hub underwent characterization and transient thermal analysis by integrating the geometric and structural features of the clutch hub. The EOL aluminium was thoroughly washed with a sodium hydroxide (NaOH) solution, cleaned with running water, and dried under sunlight to remove impurities trapped on the metal surfaces. The EOL aluminium alloy was melted in a gas furnace, an

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4

C.Selva, Ganesh, Dr.T.Vigraman, D.Sujith, M.Velmanikandan, and T.Vetrivel. "MICROSTRUCTURAL AND TRANSIENT THERMAL ANALYSIS OF TIG WELDED JOINT SAE 2205 WITH AISI 304 WITH AISI 308 FILLER METAL." International Journal of Engineering Technologies and Management Research 4, no. 10 (2017): 15–25. https://doi.org/10.5281/zenodo.1040736.

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<strong><em>In the present work SAE 2205 is welded with AISI 304 using AISI 308 filler wire. TIG welding current was maintained at 110, 120 and 130 Amp and the voltage was set at 40 Volt. A constant welding speed of 0.5 mm/s was maintained for all the experiments. The optical microscopic examination of the welded samples revealed the presence of recrystalized zone, mushy zone at the weld metal SAE 2205 side and columnar grains adjacent to the heat affected zone. The maximum hardness value of Rc 29 was observed in the welded region. The increase in hardness value was attributed to absorption of

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5

Totok, Suwanda, Soenoko Rudy, Surya Irawan Yudy, and Agus Choiron Moch. "TEMPERATURE CYCLE ANALYSIS OF A6061-AISI304 DISSIMILAR METAL CONTINUOUS DRIVE FRICTION WELDING." Eastern-European Journal of Enterprise Technologies 3, no. 12 (105) (2020): 38–43. https://doi.org/10.15587/1729-4061.2020.203391.

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In the previous study, Continuous Drive Friction Welding (CDFW) had been investigated to determine the strength of joining, burn off, and temperature distribution. In this study, Dissimilar Metal CDFW was studied to assess temperature cycle analysis. Aluminum 6061 (A6061) workpiece was fixed, and an AISI 304 was rotated at 1,000 rpm. The temperature distribution was measured by using an OMEGA Thermocouple Data Logger. The thermocouple was installed near joining location 5 mm distance from the joint. In the computer simulation, the geometry of CDFW was designed using ANSYS Design Mode

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6

Wang, Chong, and Yan Sheng Jiand. "Thermal Shock Damage Evaluation of Porous Refractory by Finite Element Method." Defect and Diffusion Forum 312-315 (April 2011): 1032–37. http://dx.doi.org/10.4028/www.scientific.net/ddf.312-315.1032.

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This work addresses damage evaluation of porous mullite refractory subjected to thermal shock. Incommunicating circular pores were distributed randomly at a volume percentage up to 40% in a cylinder of 20 cm diameter. The analysis was performed by means of the software ANSYS® combined with a pre-program that generates randomly distributed pores of given size. The analysis procedure was divided into two stages. In the first, transient thermal analysis considering temperature-dependent material property was dealt with different thermal shock temperatures under natural cooling condition. The foll

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7

Hu, Xiaoyi. "Integrated biomechanical-thermomechanical approach for hydration heat management in hollow concrete piers: Balancing structural integrity and construction ergonomics." Molecular & Cellular Biomechanics 22, no. 5 (2025): 1720. https://doi.org/10.62617/mcb1720.

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This study investigates temperature field variations and associated risks in tall hollow concrete bridge piers caused by cement hydration heat during construction. Integrating field measurements and numerical simulations, we analyzed the dynamic evolution of internal temperature distribution and its structural implications. Field experiments involved continuous temperature monitoring using high-precision sensors embedded in critical zones (core, surface, and varying depths) of a representative pier. Concurrently, a 3D finite element model was developed in ANSYS, incorporating nonlinear thermal

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8

Dahmani, Lahlou, and Rachid Mehaddene. "Thermomecanical Response of LNG Concrete Tank to Cryogenic Temperatures." Defect and Diffusion Forum 312-315 (April 2011): 1021–26. http://dx.doi.org/10.4028/www.scientific.net/ddf.312-315.1021.

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In this paper are illustrated the principal aspects connected with the numerical evaluation of thermal stress induced by LNG (liquefied natural gas) in a concrete tank. In order to investigate the thermal induced tensile stresses, the ANSYS finite element code has been employed for performing a sequential, non linear, transient thermal-structural analysis, taking into account the thermal dependant properties of the concrete such as thermal conductivity and specific heat. Temperature distribution data of thermal analysis is required in the coupled field analysis finally to obtain and analyze th

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9

Stankovic, Danijela, Luke A. Bisby, and Giovanni P. Terrasi. "Influence of Temperature on the Mechanical Performance of Unidirectional Carbon Fiber Reinforced Polymer Straps." Materials 14, no. 8 (2021): 1903. http://dx.doi.org/10.3390/ma14081903.

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The performance of pretensioned, laminated, unidirectional (UD), carbon fiber reinforced polymer (CFRP) straps, that can potentially be used for example as bridge deck suspender cables or prestressed shear reinforcements for reinforced concrete slabs and beams, was investigated at elevated temperatures. This paper aims to elucidate the effects of elevated temperature specifically on the tensile performance of pretensioned, pin-loaded straps. Two types of tests are presented: (1) steady state thermal and (2) transient state thermal. Eight steady-state target temperatures in the range of 24 °C t

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10

Khashan, Hayder Kadhim, Mondher Zidi, and Emad Kamil Hussein. "Thermal and Morphological Investigation of Adding Silicon Carbide as a Nano-Material to a Carbon Fibre Composites: Numerical and Experimental Analysis." Journal of Advanced Research in Numerical Heat Transfer 35, no. 1 (2025): 54–67. https://doi.org/10.37934/arnht.35.1.5467.

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This research investigates the mechanical, morphological, and thermal properties of carbon fiber composites with Silicon Carbide (SiC) nanoparticles. Both composites were produced using Vacuum Bagging Molding (VBM) and analyzed through numerical and experimental methods, including tensile tests (ASTM D3039), ultrasonic three-point bending fatigue tests (ASTM C1360), and morphological examinations (ASTM D1894). The steady-state thermal analysis was conducted using ANSYS. The modified composites contained 2% and 8% wt. of SiC nanoparticles. Results showed improvements in tensile strength by 23%

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11

TUSHAR, JAIN, S. JAIN SHUBHAM, KAZI SHABNAM, and JAIN S. R. DULANGE VISHAL. "BENDING STRESS AND THERMAL ANALYSIS OF SPUR GEAR BY USING FEM." JournalNX - A Multidisciplinary Peer Reviewed Journal NITET2017 (March 16, 2017): 70–73. https://doi.org/10.5281/zenodo.1461386.

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Gear is the one of the important machine element in the mechanical power transmission system. Spur gear is most basic gear used to transmit power between parallel shafts. Spur gear generally fails by bending failure or contact failure. This paper deals with the bending stress calculation of spur gear theoretically and validating it with ANSYS software. These meshed gears from the gear box are subjected to considerable damage throughout its life span due to dynamic excitations caused by terrain undulations, the rotating wheel and track assemblies. The friction between two rolling gears results

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12

Yu, Qian, Guixin Wang, Yilong Cao, and Jiaqi Zhao. "Strength analysis of diesel engine block based on multi-body transient dynamics." Advances in Economics and Management Research 4, no. 1 (2023): 232. http://dx.doi.org/10.56028/aemr.4.1.232.2023.

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Based on the multi-body transient dynamics calculation method, the strength of a low-speed marine diesel engine block is analyzed. Firstly, UG software is used to simplify the whole machine and obtain the corresponding simplified model. Then, in ANSYS software, the corresponding loads and boundary conditions are applied to each component in the diesel engine model to simulate the normal working process of the diesel engine and calculate the structural strength of the engine block. It is found that the stress on the engine block is not constant, but changes with the rotation of the crankshaft a

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13

Yin, Zhi Xiang, Jia Peng Zhao, and Si Da Zhao. "Study on Performance of Kiewitt Single-Layer Spherical Reticulated Shell Structure under the Action of Fire." Applied Mechanics and Materials 488-489 (January 2014): 102–5. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.102.

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Under the condition of high temperature, steel basic mechanical property index such as strength, elastic modulus falls sharply. Once there is a fire, long-span reticulated shell has serious damage. This paper, taking Kiewitt reticulated spherical shell as an example, uses ISO - 834 standard temperature - time curve to simulate fire and analyze the distribution of temperature field calculation and mechanical. Analysis by using transient thermal analysis in ANSYS software. Through ANSYS software to analog fire resistant properties of reticulated shell under the action of local fire resistant pro

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14

Njock, Francois Bayock, Martins Kesse, Maxime Yebga, Eric Ndjem Eyike, and Ruben Nlend. "Finite Element Simulation and Experimental Analysis of the Thermo-Mechanical Properties of Dissimilar S275 and 316L Austenite Stainless Steels using the RFW Process." Engineering, Technology & Applied Science Research 14, no. 6 (2024): 18718–26. https://doi.org/10.48084/etasr.8766.

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This research examines the effect of thermomechanical and microstructural constituents on welding of AISI 316L (austenite stainless steel) and S275 steel. A Finite Element Model (FEM) was constructed using ANSYS 19.1, and an experimental study was conducted using the Rotary Friction Welding (RFW) process. It was determined that there is a genuine correlation between the simulation FEM and the experimental procedure with regard to the thermal profile and ultimate yield strength, particularly when a welding speed of 2,000 rev/min is employed. At that speed, the higher temperature recorded and ca

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15

Ma, Jin Hong, Xiao Han Yao, Bin Tao, and Shuo Li. "Cooling Effects of H-Beam after Rolling on Thermal Stress." Advanced Materials Research 898 (February 2014): 233–36. http://dx.doi.org/10.4028/www.scientific.net/amr.898.233.

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Controlled cooling of H-beam after rolling, can change the microstructure consituent,improve the strength and improve the general mechanical property and service performance. According to actual product, the rational thermal boundary condition adopted, three dimensional FEM model is established. Spray cooling is used. Transient temperature field and stress field is simulated by the FEM software ANSYS/Multiphysics when H-beam is cooled. The four kinds of cooling scheme are designed. Through analysis of the relation of temperature field with stress field, the main reason of producing residual th

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16

Li, Jun, Xue Feng Song, Gong Hui Liu, Yan Xi, Wei Lian, and Tao Huang. "Corrosion Strength Analysis of Casing in Offshore Thermal Recovery Wells." Materials Science Forum 944 (January 2019): 956–64. http://dx.doi.org/10.4028/www.scientific.net/msf.944.956.

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Corrosion is a common problem in offshore oil and gas wells, especially in thermal recovery wells, which will greatly affect the residual strength of casing strings. Field data show that the corrosion pattern of casing is mainly pitting, local corrosion and uniform corrosion, of which pitting is the most common. For this reason, based on the engineering practice of thermal recovery well casing corrosion, the dynamic changes of wellbore temperature and pressure during the gas production process of thermal recovery wells are considered, and the numerical model of casing corrosion under transient

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17

Balo, Figen. "Theoretical Modelling, Experimental Testing and Simulation Analysis of Thermal Properties for Green Building-Insulation Materials." Polymers 17, no. 3 (2025): 340. https://doi.org/10.3390/polym17030340.

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In this study, 45 alternative green materials for building walls were experimentally produced, utilizing renewable (epoxidized sesame oil), natural (clay), and waste (Seyitömer fly ash) resources. These materials were evaluated based on key technical properties such as mass, tensile-compressive strength, and thermal conductivity, all of which are essential for construction and insulation applications. Subsequently, theoretical modeling was conducted for the material coded SE45, which demonstrated the lowest thermal conductivity. Through mathematical calculations, the theoretical thermal conduc

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18

Bais, Shivansh, and Govardhan Bhatt. "Structural Fire Analysis of Beams and Slabs Using ANSYS and FEAST Software Program." Proceedings of the 12th Structural Engineering Convention, SEC 2022: Themes 1-2 1, no. 1 (2022): 1193–98. http://dx.doi.org/10.38208/acp.v1.639.

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In recent years, building fire has become more frequent event and fire accidents have increased all over the world. Major problem with fire is it provides very less time to handle the situation and due to elevated temperature, reduction in strength of structural member with increase in fire exposure time has been observed. To evaluate this reduced strength of structural members and design for fire load, it is necessary to have the parameters such as fire load, fire exposure time and temperature variation across the structural members. In this paper, evaluation of fire load, equivalent time of

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19

Hamdan, Lailatul Hamidah, Mohd Azli Salim, Nor Azmmi Masripan, Chonlatee Photong, and Alan Watson. "Finite Element Analysis for Transient on Highly Thermal Hybridization Conductive Ink." Journal of Advanced Research in Numerical Heat Transfer 35, no. 1 (2025): 1–24. https://doi.org/10.37934/arnht.35.1.124.

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Conductive ink, which can be produced using materials like graphene, possesses exceptional electrical conductivity and is cost-effective as well as environmentally friendly, making it ideal for future printed electronics. The conductive ink's properties also offer significant mechanical strength, excellent heat and electrical conductivity, thermal conductivity, thinness, and flexibility. The hybrid conductive ink, when combined with silver, often demonstrates superior conductivity and stability. This research aims to develop a highly thermal graphene hybrid conductive ink, using graphene nanop

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20

MP, Jenarthanan, Ramesh Kumar S., and Akhilendra Kumar Singh. "Fly ash-based green composite as pipe, gear and blade." World Journal of Engineering 15, no. 1 (2018): 40–47. http://dx.doi.org/10.1108/wje-12-2016-0163.

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Purpose This paper aims to perform an experimental investigation on the impact strength, compressive strength, tensile strength and flexural strength of fly ash-based green composites and to compare with these polyvinyl chloride (PVC), high density polyethylene (HDPE) and low density polyethylene (LDPE). Design/methodology/approach Fly ash-based polymer matrix composites (FA-PMCs) were fabricated using hand layup method. Composites containing 100 g by weight fly ash particles, 100 g by weight brick dust particles and 50 g by weight chopped glass fiber particles were processed. Impact strength,

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21

Irawan, Yudy Surya, Moch Agus Choiron, and Wahyono Suprapto. "Tensile strength and thermal cycle analysis of AA6061 friction weld joints with different diameters and various friction times." Eastern-European Journal of Enterprise Technologies 2, no. 12 (110) (2021): 15–21. http://dx.doi.org/10.15587/1729-4061.2021.227224.

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The paper reports measurement of tensile strength and the thermal cycle of AA6061 aluminum alloy circular bar friction weld with different diameters and various friction times. A continuous drive friction welding (CDFW) of AA6061 was conducted to weld the AA6061 circular bar with different diameters of 30 mm for the rotating part and 15 mm for the stationary part. The CDFW process was carried out with the revolution speed of 1,600 rpm, the initial compressive force of 2.8 kN during the friction stage for various friction times of 10, 12, and 14 seconds, and an upset force of 28 kN for 60 secon

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22

Yudy, Surya Irawan, Agus Choiron Moch, and Suprapto Wahyono. "Tensile strength and thermal cycle analysis of AA6061 friction weld joints with different diameters and various friction times." Eastern-European Journal of Enterprise Technologies 2, no. 12 (110) (2021): 15–21. https://doi.org/10.15587/1729-4061.2021.227224.

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Анотація:

The paper reports measurement of tensile strength and the thermal cycle of AA6061 aluminum alloy circular bar friction weld with different diameters and various friction times. A continuous drive friction welding (CDFW) of AA6061 was conducted to weld the AA6061 circular bar with different diameters of 30 mm for the rotating part and 15 mm for the stationary part. The CDFW process was carried out with the revolution speed of 1,600 rpm, the initial compressive force of 2.8 kN during the friction stage for various friction times of 10, 12, and 14 seconds, and an upset fo

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23

Baskoro, Ario Sunar, Andreas Edyanto, Muhammad Azwar Amat, and Hakam Muzaki. "Study on Nugget Growth in Resistance Spot Welding of Thin Aluminum A1100 Using Welding Simulation." Materials Science Forum 929 (August 2018): 191–99. http://dx.doi.org/10.4028/www.scientific.net/msf.929.191.

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Resistance spot welding (RSW), generally which is one of the most often used to joint metal plate in the automotive and aviation industries. RSW welding process involves electrical, thermal mechanical, metallurgy, and complex surface phenomenon. Unlike the other welding processes, weld joint formation in RSW process occurs very quick (in milli-seconds) and took place between the workpieces overlap each other. Welding simulation allows visual examination of the weld joint without having to perform an expensive experiment. Weld nugget size is the most important parameter in determining the mecha

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24

Hussin, Radhwan, Safian Sharif, Shayfull Zamree Abd Rahim, et al. "Irregular Shape Effect of Brass and Copper Filler on the Properties of Metal Epoxy Composite (MEC) for Rapid Tooling Application." Journal of Manufacturing and Materials Processing 6, no. 6 (2022): 134. http://dx.doi.org/10.3390/jmmp6060134.

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Due to their low shrinkage and easy moldability, metal epoxy composites (MEC) are recognized as an alternative material that can be applied as hybrid mold inserts manufactured with rapid tooling (RT) technologies. Although many studies have been conducted on MEC or reinforced composite, research on the material properties, especially on thermal conductivity and compressive strength, that contribute to the overall mold insert performance and molded part quality are still lacking. The purpose of this research is to investigate the effect of the cooling efficiency using MEC materials. Thus, this

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25

Angga, Tri Laksono Putro, Santiasih Indri, and Putu Sindhu Asmara I. "Heat Transfer Transient Analysis on the Fire Proofing Coating Applications for Structural Steel." International Journal of Innovative Science and Research Technology 7, no. 7 (2022): 1715–46. https://doi.org/10.5281/zenodo.7027223.

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In the development of building construction, the use of Structural Steels is now widely used due to itsadvantages in terms of mechanical strength, elasticity, standardization of sizes, ease of fabrication and economic considerations. However, structures made of steel are susceptible to temperature increases during a fire. Currently, there are several typesof fireproofingcoating forStructural Steels such as intumescent coatings, cementitiouscoating products and etc. This paper will discuss the resistance of Structural Steel in the event of a fire between protected and unprotected Structural Ste

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26

Soul, F., and M. Ateeg. "Development of Predicted Stress and Strain during Conventional and after Mitigation of Welded Aluminium-Manganese Alloy." Materials Science Forum 762 (July 2013): 596–601. http://dx.doi.org/10.4028/www.scientific.net/msf.762.596.

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The trend in automotive, aircraft, and marine industries is the increasing use of sheet materials to reduce weight in components and optimize materials performance. Welding is the main fabrication and assembly process in many of these industrial applications. However, in using thin-shell structures in such applications, welding may results in significant residual stresses and out-of-plane distortion. Transient thermal stresses, residual stresses, and distortion sometimes cause cracking and mismatching of joints. High tensile residual stresses are undesirable since they can contribute to fatigu

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27

Raza, Syed Farhan, Muhammad Amjad, Muhammad Salman Habib, Naveed Ahmed, and Fahid Riaz. "Investigating the Welding Parameters in Friction Stir Welding of Yellow Brass 405-20." Applied Sciences 13, no. 4 (2023): 2433. http://dx.doi.org/10.3390/app13042433.

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Анотація:

This research presents the numerical and empirical efforts to investigate the effect of friction stir welding (FSW) parameters on the weld temperature, weld strength, and weld hardness for novel brass known as yellow brass 405-20. The numerical approaches used to measure the weld temperature and weld strength were studied for the first time for yellow brass 405-20 and their validations via empirical studies. Two numerical models were simulated including transient thermal analysis and static structural analysis. Thermal distribution leading to maximum weld temperature during FSW of yellow brass

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28

Dhanesh, C., T. Anand, and J. Venkatesan. "Analysis of bronze hybrid composite for spark ignition engine piston." FME Transactions 48, no. 4 (2020): 962–67. http://dx.doi.org/10.5937/fme2004962d.

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Анотація:

The development in automotive industry leads to economy and comfort of the vehicles and thus forces the designers to develop new materials for the improved performance. In this work, Bronze hybrid composite with Aluminium and Silicon reinforcement for spark ignition engine piston was fabricated through vacuum stir casting process. Conventional machining techniques such as turning, drilling and boring etc., were used to manufacture the piston. Thermal analysis on the composite piston was carried out using Finite Element Software ANSYS. The mechanical properties tensile and impact strength and h

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29

Zhao, Xiaoming, Yuanjun Liu, and Tenglong Liang. "Study on the Thermal Insulation Performance of PAN Pre-Oxidised Fibre Felts." Fibres and Textiles in Eastern Europe 28, no. 3(141) (2020): 27–37. http://dx.doi.org/10.5604/01.3001.0013.9015.

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In this paper, an orthogonal experiment of 3 factors and 3 levels was firstly designed to prepare PAN pre-oxidised fibre felts with good thermal insulation properties; the range method was used to analyse the result of the orthogonal experiment, and finally the tensile properties and thermal stability were tested. Finally, pre-oxidised fibre felt composites for the coating of silica aerogel were prepared using the coating process to compound silica aerogel on re-oxidised fibre felts. Firstly, the influence of the content of silica aerogel on the heat insulation performance of the coated compos

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30

Gharbi, Athraa H., and Akram S. Mahmoud. "Punching Shear Behavior of Reinforced Concrete Slabs under Fire using Finite Elements." Journal of Engineering 26, no. 5 (2020): 106–27. http://dx.doi.org/10.31026/j.eng.2020.05.08.

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Анотація:

The main aim of this paper is studied the punching shear and behavior of reinforced concrete slabs exposed to fires, the possibility of punching shear failure occurred as a result of the fires and their inability to withstand the loads. Simulation by finite element analysis is made to predict the type of failure, distribution temperature through the thickness of the slabs, deformation and punching strength. Nonlinear finite element transient thermal-structural analysis at fire conditions are analyzed by ANSYS package. The validity of the modeling is performed for the mechanical and thermal pro

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31

Jameel, Adnan N., Nabeel K. Abid Al-Sahib, and Osama F. Abd Al Latteef. "RESIDUAL STRESS DISTRIBUTION FOR A SINGLE PASS WELD IN PIPE." Journal of Engineering 16, no. 01 (2010): 4618–30. http://dx.doi.org/10.31026/j.eng.2010.01.18.

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Анотація:

Heat input due to the welding of mild steel pipe causes a temperature gradient in the parent metal. After welding and temperature cooling down, residual stresses appear around welding zone which reduces the weld strength. Residual stresses are a result of the temperature gradient and the dependency of material properties on the temperature, such as yield strength, elasticity modulus, and thermal expansion coefficient.In this study, a typical flat joint of a single pass weld in a thin pipe was studied analytically and numerically. Analytical approach is performed by exploring a simple method to

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Modest, Michael F., and Thomas M. Mallison. "Transient Elastic Thermal Stress Development During Laser Scribing of Ceramics." Journal of Heat Transfer 123, no. 1 (2000): 171–77. http://dx.doi.org/10.1115/1.1332779.

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Lsaers are emerging as a valuable tool for shaping and cutting hard and brittle ceramics. Unfortunately, the large, concentrated heat flux rates that allow the laser to efficiently cut and shape the ceramic also result in large localized thermal stresses in a small heat-affected zone. These notable thermal stresses can lead to micro-cracks, a decrease in strength and fatigue life, and possibly catastrophic failure. In order to assess where, when, and what stresses occur during laser scribing, an elastic stress model has been incorporated into a three-dimensional scribing and cutting code. Firs

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Gao, C. H., J. M. Huang, X. Z. Lin, and X. S. Tang. "Stress Analysis of Thermal Fatigue Fracture of Brake Disks Based on Thermomechanical Coupling." Journal of Tribology 129, no. 3 (2006): 536–43. http://dx.doi.org/10.1115/1.2736437.

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This paper develops a three-dimensional (3D) thermal-structure coupling model, implements transient stress analysis of thermoelastic contact of disk brakes with a frictional heat variation and identifies the source of the thermal fatigue. This thermostructure model allows the analysis of the effects of the moving heat source (the pad) with a variable speed and integrates the heat flux coupling between the sliding surfaces. To obtain the transient stress/temperature fields of the brake under an emergency braking, the thermoelastic problem under this 3D model is solved by the finite element meth

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Xu, Y. Q., T. Zhang, and Y. M. Bai. "Analysis of the Surface Residual Stress in Grinding Aermet100." Materials Science Forum 704-705 (December 2011): 318–24. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.318.

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Grinding induces residual stresses, which can play an important role on the fatigue of the component. In general, residual stresses in a ground surface are primarily generated due to three effects: thermal expansion and contraction during grinding, plastic deformation caused by the abrasive grains of the wheel and phase transformations due to high grinding temperature. It was found that thermal expansion and plastic deformation in the grinding process were the major causes of residual stresses. In this paper, an analysis model for the calculation of residual stresses induced by a surface grind

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35

Dahlhoff, Annette, Cynthia Morales Cruz, and Michael Raupach. "Influence of Selected Impregnation Materials on the Tensile Strength for Carbon Textile Reinforced Concrete at Elevated Temperatures." Buildings 12, no. 12 (2022): 2177. http://dx.doi.org/10.3390/buildings12122177.

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Carbon textile reinforced concrete (CTRC) has been investigated in terms of its elevated temperature and fire behavior in order to evaluate the influence of impregnation materials. Elevated temperature tests have already been carried out for material combinations of CTRC. For the tensile strength and the bond behavior between textile reinforcement and concrete, the impregnation of the textile reinforcement is the influencing factor. Impregnation materials such as epoxy-resin (EP) or styrene butadiene rubber (SBR) showed a deterioration of the elevated temperature behavior compared to unimpregn

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Butt, Javaid, Mohammad Ghorabian, Abed Ahmed, and Hassan Shirvani. "Finite Element Modelling and Validation of Thermomechanical Behaviour for Layered Aluminium Parts Made by Composite Metal Foil Manufacturing." Journal of Composites Science 2, no. 4 (2018): 68. http://dx.doi.org/10.3390/jcs2040068.

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The paper presents finite element modelling and thermomechanical analysis on the tensile properties of layered aluminium 1050 metal foil parts made by composite metal foil manufacturing. In this paper, a three-dimensional finite element model was developed and validated through experiments to analyse thermal effects on the tensile properties of 200-μm-thick aluminium 1050 metal foils. The effects of thermal stress and strain were studied by carrying out transient thermal analysis on the heated plates used to join the 200-μm-thick metal foils together using a special brazing paste. A standard t

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Xu, Congchang, Ke Liu, Hong He, Hanlin Xiang, Xinxin Zhang, and Luoxing Li. "Mechanical Performance Evaluation of the Al-Mg-Si-(Cu) Aluminum Alloys after Transient Thermal Shock through an Novel Equivalent Structure Design and Finite Element Modeling." Metals 10, no. 4 (2020): 537. http://dx.doi.org/10.3390/met10040537.

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In this paper, the microstructure evolution and mechanical performance of the Al-Mg-Si-(Cu) aluminum alloy after transient thermal shock were investigated through experimental tests and finite element simulations. A novel equivalent structure was designed as a typical case in which one side of the plate was welded therefore the other side was thermally shocked with different temperature distribution and duration. The temperature gradient which influences most importantly the mechanical properties was simulated and experimentally verified. Through cutting layers and tensile testing, the mechani

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Ganesh, C. Selva, T. Vigraman, D. Sujith, M. Velmanikandan, and T. Vetrivel. "MICROSTRUCTURAL AND TRANSIENT THERMAL ANALYSIS OF TIG WELDED JOINT SAE 2205 WITH AISI 304 WITH AISI 308 FILLER METAL." International Journal of Engineering Technologies and Management Research 4, no. 10 (2020): 15–25. http://dx.doi.org/10.29121/ijetmr.v4.i10.2017.101.

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In the present work SAE 2205 is welded with AISI 304 using AISI 308 filler wire. TIG welding current was maintained at 110, 120 and 130 Amp and the voltage was set at 40 Volt. A constant welding speed of 0.5 mm/s was maintained for all the experiments. The optical microscopic examination of the welded samples revealed the presence of recrystalized zone, mushy zone at the weld metal SAE 2205 side and columnar grains adjacent to the heat affected zone. The maximum hardness value of Rc 29 was observed in the welded region. The increase in hardness value was attributed to absorption of oxygen in t

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Underwood, John H., Gregory N. Vigilante, Christopher P. Mulligan, and Mark E. Todaro. "Thermomechanically Controlled Erosion in Army Cannons: A Review." Journal of Pressure Vessel Technology 128, no. 2 (2006): 168–72. http://dx.doi.org/10.1115/1.2175022.

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Metallographic characterization is presented of thermal damage of Cr-coated steel in a fired cannon; Cr and Ta coated steel in a vented-erosion-simulator; and bulk Si3N4 in laser heating. Common features of rapid crack-induced erosion are noted. (i) Cracks form normal to the surface, often permanently open, indicating tensile stress was present at some point during thermal damage. (ii) Softening of Cr and Ta coatings and Si3N4 occurs near the heated surface, verified by metallography and hot hardness. The transformation of steel beneath the coatings is used as an in-situ verification of temper

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Chen, Xiaowu, Guofeng Cheng, Junmin Zhang, et al. "Residual stress variation in SiCf/SiC composite during heat treatment and its effects on mechanical behavior." Journal of Advanced Ceramics 9, no. 5 (2020): 567–75. http://dx.doi.org/10.1007/s40145-020-0395-4.

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Abstract Residual stress originated from thermal expansion mismatch determines the mechanical properties of ceramic matrix composites (CMCs). Here, continuous SiC fiber reinforced SiC matrix (SiCf/SiC) composites were fabricated by nano-infiltration and transient eutectic-phase (NITE) method, and the residual stress of the composites was investigated using high-temperature Raman spectrometer. With temperature increasing from room temperature to 1400 °C, the residual stresses of the matrix and the fiber decrease from 1.29 to 0.62 GPa and from 0.84 to 0.55 GPa in compression respectively, while

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41

Yang, Ben-Gao, Peng He, Gao-You Peng, and Tong Lu. "Temperature-stress coupling mechanism analysis of one-time pouring mass concrete." Thermal Science 23, no. 3 Part A (2019): 1615–21. http://dx.doi.org/10.2298/tsci180825231y.

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Thermal damage control of mass concrete is the key to guarantee the quality of mass projects. Based on several engineering experiences and finite element software ANSYS, the temperature field and stress field of the typical dam section of the Tengzigou hydropower station in Sichuan province were simulated. Considering the actual materials used, cooling measures, etc., maximum tensile stress and compressive stress at different time points derived from the temperature stress field during the time of concrete maintenance were calculated, and the numerical results showed that strength increment un

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Zhou, Fei, Jiwen Zhang, Shoutan Song, Dong Yang, and Chao Wang. "Effect of Temperature on Material Properties of Carbon Fiber Reinforced Polymer (CFRP) Tendons: Experiments and Model Assessment." Materials 12, no. 7 (2019): 1025. http://dx.doi.org/10.3390/ma12071025.

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Material properties at elevated temperatures are important factors in the fire safety design and numerical analysis of concrete members strengthened with fiber reinforced polymer (FRP) composites. Most of the previous research mainly focused on tensile strength and elastic modulus in conventional steady state temperature tests. However, the transient state test method is more realistic for strengthening concrete structures. At the same time, the coefficient of thermal expansion of FRP composites is also one of the important factors affecting concrete members at elevated temperatures. This pape

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43

Kou, Zhengqi, Jun Xiao, Dajun Huan, Kang Zhu, and Lei Yan. "Optimization of thermal model and prediction of crystallinity during the laser-assisted tape winding process." Journal of Reinforced Plastics and Composites 40, no. 15-16 (2021): 606–18. http://dx.doi.org/10.1177/0731684421992131.

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Laser-assisted tape placement and tape winding represent the most advanced automated manufacturing technologies for thermoplastic composites. It is important to accurately predict the complete thermal history of the manufacturing process, on which many properties of the product are strongly dependent, such as interlaminar bonding strength and crystallization. In this article, a nonlinear two-dimensional transient heat transfer model was established in ANSYS APDL, and a new temperature closed-loop controlled near-infrared laser heat source was described. Most importantly, the thermal contact pa

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44

Liu, Mingyu, Hongya Fu, Zhiyuan Zhao, Ziang Jin, Zhenyu Han, and Shouzheng Sun. "Optimization of thermoplastic composites process parameters based on robotic fiber placement." Journal of Physics: Conference Series 2888, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2888/1/012008.

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Abstract In robot-driven composite manufacturing, managing the temperature field is crucial for determining the strength of the molding. This paper presents a process simulation analysis of the temperature field during the robot placement of thermoplastic composite materials on curved surfaces. The paper establishes an optimized temperature field model for the lay-up process on curved surfaces. Innovatively considering the influence of different plys on the heating temperature, this model can calculate the optimal heating temperature parameters for various ply layers. A two-dimensional heat tr

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45

Sathyanathan, M., and R. Ramesh Kumar. "Thermo-Mechanical Properties of Particulate Banana Epoxy Composite with Fruit Waste (Dragon Fruit Peel) Micro Filler for Household Applications." Journal of Biobased Materials and Bioenergy 18, no. 4 (2024): 537–53. http://dx.doi.org/10.1166/jbmb.2024.2400.

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This study evaluates the thermo-mechanical characteristics of eco-friendly composite made of particulate banana fiber (reinforcement), epoxy resin (matrix) and dragon fruit peel powder (micro filler). The composites were developed using compression moulding technique with 3 factors, 4 variations and Taguchi orthogonal array design (L16). The proposed filler characterization results revealed that the density was 0.97 g/cm3 and combination of C–O, Ca–O, and Ca–Co could improve mechanical strength. Composites with 5 mm fiber length, 40 wt.% fiber weight, and 15 wt.% filler weight have a maximum t

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46

Shammazov, I. A., E. D. Karyakina, and A. V. Shalygin. "STRESS-STRAIN STATE SIMULATION OF AN UNDERGROUND LIQUEFIED NATURAL GAS PIPELINE." Problems of Gathering Treatment and Transportation of Oil and Oil Products, no. 3 (July 26, 2023): 77–93. http://dx.doi.org/10.17122/ntj-oil-2023-2-77-93.

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In recent years, there has been a steady development of systems for the production of small-scale liquefied natural gas for gas supply to remote consumers in cases where the possibilities of pipeline construction are limited. In addition, there is a tendency to use liquefied gas to replace liquid hydrocarbon fuels (gasoline, kerosene, gasoil, fuel oil). Due to the growth and emergence of new industries for liquefied natural gas consumption, the infrastructure necessary for its production, transportation and storage is being developed.  The article presents an analysis of the use of the m

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47

Gomes, Carlos, Elza M. M. Fonseca, and Hernâni M. Lopes. "Thermomechanical Analysis of Steel-to-Timber Connections under Fire and the Material Density Effect." Applied Sciences 12, no. 20 (2022): 10516. http://dx.doi.org/10.3390/app122010516.

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This work presents a thermomechanical numerical analysis of a steel-to-timber connection with dowels in tension when exposed to fire using ANSYS ® software. Three different wood density materials were considered. The connection is built by a three-dimensional model with a thermomechanical boundary condition. A nominal temperature–time curve, ISO 834, was used to simulate the fire effect. Numerical simulation to determine the field of thermal and mechanical stresses was performed using a combined problem. A temperature field was imposed for a given time instant of fire exposure, calculated thro

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48

Pranathi, K., S. MD Adib Ayub, and CH Paul. "Composite Laminates with Epoxy Resin and E-Glass Fibers: Analysis of Mechanical Properties." Journal of Physics: Conference Series 2837, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2837/1/012008.

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Abstract Polymer fibre-reinforced composites are extensively researched for their potential in high-performance industries such as aerospace, automotive, and ground transportation. These composites offer high strength and inertia. However, their use is hindered by inherent drawbacks, primarily the inability to absorb moisture and high flammability compared to natural fibres. Despite these challenges, composites made from glass and specialty synthetic fibres continue to be attractive due to benefits like a high strength-to-weight ratio and excellent resistance to heat and chemicals. To overcome

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49

Maleronok, V. V., D. A. Tsionenko, and A. V. Alifanov. "Numerical simulation of the magnetic-pulsed processing of axis cutting tools using ANSYS." Doklady of the National Academy of Sciences of Belarus 66, no. 2 (2022): 237–46. http://dx.doi.org/10.29235/1561-8323-2022-66-2-237-246.

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The purpose of this study is an analysis of the numerical simulation results of the magnetic-pulsed processing (MPP) of axis cutting tools using ANSYS. Practical recommendations for the choice of optimal MPP modes are developed on the basis of this analysis. The induction current distribution on the surface of a drill placed in an inductor was obtained using the Ansys Electronics Desktop (Maxwell) module. The time realization of the current pulse in the inductor corresponds to the shape of the experimentally measured pulse waveform. The magnetic pulse is generated by the unit MIU-2. According

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FEDOROVA, LILIYA V. "CALCULATION OF THE TEMPERATURE FIELD OF THE HARDENED LAYER DURING ELECTROMECHANICAL SURFACE HARDENING." Agricultural engineering, no. 2 (2022): 59–64. http://dx.doi.org/10.26897/2687-1149-2022-2-59-64.

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The main methods of surface hardening during electromechanical processing (EMP) include finishing-hardening electromechanical processing (FHEMP) and electromechanical surface hardening (EMSH). EMSH, as compared with the FHEMP modes, features a slow processing speed (0.6…1.4 m/min), a long contact width of up to 5 mm, a significant electric current strength of the secondary circuit – 1200…3000 A. The article presents a three-dimensional model for predicting and determining the temperature fields of the hardened layer of U8 steel bushings during EMSH made in the ANSYS Workbench program. The auth

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