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Journal articles on the topic 'Compression stress and strain'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Yu, Ziruo, Zhiguang Li, Yuran Jiang, and Yue Wang. "Mechanical Behavior of Reactive Powder Concrete Subjected to Biaxial Loading." Advances in Civil Engineering 2022 (July 1, 2022): 1–11. http://dx.doi.org/10.1155/2022/9246692.

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To investigate the biaxial mechanical characteristics of reactive powder concrete (RPC), RPC plate specimens and bone-shaped specimens were tested under compression-compression and compression-tension loadings, respectively. The strengths and strains of the specimens were recorded, and the crack patterns and failure modes in various stress states were examined. Based on the test data, the characteristics of biaxial strength were analyzed, and a biaxial failure criterion was established. The characteristics of major stress-strain curves and failure modes in different biaxial stress states were

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2

Wang, Hong Yun, and Hui Qiang Zheng. "Shear and Squeeze Rheometry of Magnetorheological Fluids." Advanced Materials Research 305 (July 2011): 344–47. http://dx.doi.org/10.4028/www.scientific.net/amr.305.344.

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The mechanical properties of a magnetorheological (MR) fluid in shearing, compression and shearing after compression have been studied in the magnetic field which is generated by a coil carrying different magnitudes of DC electrical current on a self-constructed test system. The relations of compression stress versus compression strain, yield stress versus compression stress were studied under different magnetic fields. The compressing tests showed that the MR fluid is very stiff at small compressive strains lower than 0.13. The shear yield stress of MR fluids after compression was much strong

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3

SHIMIZU, ICHIRO, NAOYA TADA, and KOSUKE NAKAYAMA. "THE INFLUENCE OF STRAIN PATH ON BIAXIAL COMPRESSIVE BEHAVIOR OF AZ31 MAGNESIUM ALLOY." International Journal of Modern Physics B 22, no. 31n32 (2008): 5844–49. http://dx.doi.org/10.1142/s0217979208051261.

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The strain path dependence of the compressive flow behavior of cast AZ31 magnesium alloy was investigated. Biaxial compression tests with linear strain paths were conducted using a unique biaxial compression device. It was found that the equivalent stress-strain relations varied according to the strain paths. The work contour for linear strain paths was well described by the Logan-Hosford yield criterion. Biaxial compressions with abrupt strain path change were also carried out to investigate the influences of the prestrain amplitude and angular relation of the sequential strain paths on the f

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4

Aziz, Omer Qarani, and Ramzi B. Abdul-Ahad. "Stress-Strain Curve of Fibrous Concrete in Compression." Journal of Zankoy Sulaimani - Part A 5, no. 2 (2001): 9–16. http://dx.doi.org/10.17656/jzs.10096.

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5

Smith, K. K., and M. E. Kassner. "Through-Thickness Compression Testing of Commercially Pure (Grade II) Titanium Thin Sheet to Large Strains." Journal of Metallurgy 2016 (October 9, 2016): 1–11. http://dx.doi.org/10.1155/2016/6178790.

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This study examined the through-thickness (z-direction) compressive stress versus strain behavior of 99.76% commercially pure (grade II) titanium sheet with relatively small grain size. The current study complemented earlier compression studies by examining a very thin (1.60 mm) sheet and deforming the Ti by successive compression tests to relatively large strains. The low aspect ratio, of the compression specimens extracted from the sheet, led to frictional effects that can create high triaxial stresses complicating the uniaxial stress versus strain behavior analysis. Nonetheless, reasonable

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6

Yuan, Bao Guo, Qiang Chen, Hai Ping Yu, Ping Li, Ke Min Xue, and Chun Feng Li. "Microstructure Evolution of Hydrogenated Ti6Al4V Alloy during Compression." Applied Mechanics and Materials 190-191 (July 2012): 517–21. http://dx.doi.org/10.4028/www.scientific.net/amm.190-191.517.

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Compression tests of the hydrogenated Ti6Al4V0.2H alloy were carried out using an Instron 5569 machine at room temperature. True stress-strain curves of the hydrogenated Ti6Al4V0.2H alloy under different compressive strains were obtained. Microstructure evolution of the hydrogenated Ti6Al4V0.2H alloy during the process of compression was investigated by optical microscopy and transmission electron microscopy. Results show that true stress-true strain curves of Ti6Al4V0.2H alloy have good repeatability. The deformation of grains, the dislocation density and slipping evolution during the process

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7

Cheng, Hui, Gangyao Zhao, Qi Chen, Zhenghua Guo, and Ranyang Zhang. "Research on the Uneven Deformation Law of High Temperature Alloy Large Caliber Ultra-Thin-Walled Tube Parts during Spinning." Journal of Physics: Conference Series 2706, no. 1 (2024): 012032. http://dx.doi.org/10.1088/1742-6596/2706/1/012032.

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Abstract Based on the established spinning forming model of GH 4169 large caliber ultra-thin-walled tube parts, the radial stress-strain, normal stress-strain, and circumferential stress-strain distributions were analyzed through simulation methods. The uneven deformation law of GH 4169 large caliber ultra-thin-walled tube parts during spinning was obtained. The results indicate: With the progress of spinning, the radial stress is presented as tension, the normal stress is presented as compression, and the circumferential stress is presented as tension and compression. Therefore, the distribut

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8

Shi, Feiting, Peng Cao, Ziyu Wang, Yanan Gan, Changjun Zhou, and Ketong Liu. "An Experimental Study of Dynamic Compression Performance of Self-Compacting Concrete." Materials 13, no. 17 (2020): 3731. http://dx.doi.org/10.3390/ma13173731.

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To investigate the dynamic performance of self-compacting concrete (SCC), the dynamic uniaxial compression tests at eight different loading strain rates were performed on the ordinary concrete and SCC cubic specimens. Based on the tests, the compression failure patterns and stress–strain curves of both kinds of concrete were obtained. The results show that SCC performs more brittle than ordinary concrete by showing the diagonal crack failure pattern of SCC at a high strain rate. Besides, with the increase of loading strain rate, the peak compressive stress of SCC is slightly lower than that of

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9

Wang, Hao, Xiang-Yu Zhong, He Jia, et al. "Study on the Transverse Properties of T800-Grade Unidirectional Carbon Fiber-Reinforced Polymers." Materials 18, no. 4 (2025): 816. https://doi.org/10.3390/ma18040816.

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This paper focuses on the transverse tensile and compressive mechanical properties of T800-grade unidirectional (UD) carbon fiber-reinforced polymers (CFRPs). Firstly, transverse tensile and compressive tests were conducted on UD composite laminates, yielding corresponding stress–strain curves. The results indicated that, for tension, the transverse tensile modulus, strength, and failure strain were 8.7 GPa, 64 MPa, and 0.74%, respectively, whereas for compression, these values were 8.4 GPa, 197.1 MPa, and 3.43%, respectively. The experimental curves indicated brittle failure under tensile loa

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10

Shi, Feng Jian, Si Zhen Ye, Lei Gang Wang, and Sheng Lu. "Effect of Friction on Billet Deformation during Multi-Axial Compressions." Advanced Materials Research 143-144 (October 2010): 879–83. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.879.

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The effect of friction on compression load, effective strain, damage value and maximum principal stress were analyzed by rigid-plastic finite element method during multi-axial compressions (MAC). The results show that with the number of compressions, the maximum compression load increases gradually, the effective strain distributes ringwise and the maximum effective strain is in the center and the minimum at the surface. The damage is inclined to appear at the barreled shape perpendicular to the longitudinal axis. With the increase of friction coefficient, the maximum compression load, strain

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11

Wei, Yang, Mengqian Zhou, Kunpeng Zhao, Kang Zhao, and Guofen Li. "Stress–strain relationship model of glulam bamboo under axial loading." Advanced Composites Letters 29 (January 1, 2020): 2633366X2095872. http://dx.doi.org/10.1177/2633366x20958726.

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Glulam bamboo has been preliminarily explored for use as a structural building material, and its stress–strain model under axial loading has a fundamental role in the analysis of bamboo components. To study the tension and compression behaviour of glulam bamboo, the bamboo scrimber and laminated bamboo as two kinds of typical glulam bamboo materials were tested under axial loading. Their mechanical behaviour and failure modes were investigated. The results showed that the bamboo scrimber and laminated bamboo have similar failure modes. For tensile failure, bamboo fibres were ruptured with sawt

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12

Jia, Jinqing, Lu Li, and Wei Liu. "Mechanical Properties of Post-Filling Coarse Aggregate Concrete under Biaxial Tension–Compression." Buildings 14, no. 1 (2024): 203. http://dx.doi.org/10.3390/buildings14010203.

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Post-filling coarse aggregate concrete (PFCC) is a new type of concrete that achieves energy-saving and emission-reduction goals through optimizing material proportions. The post-filled coarse aggregates can save the amount of cement material used, improve the strength and elastic modulus, prolong the service life of the material, and reduce expenses. We conducted a biaxial tension–compression test on PFCC cubic specimens, analyzed the strength and stress–strain curve regularity under different post-filling ratios (PFRs) and stress ratios, and proposed a new failure criterion suitable for PFCC

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13

Wu, Chia-Chin, and Yung-Chuan Chiou. "Stress-Strain Response of Cylindrical Rubber Fender under Monotonic and Cyclic Compression." Materials 12, no. 2 (2019): 282. http://dx.doi.org/10.3390/ma12020282.

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The study was devoted to the observation and modeling the mechanical behaviors of a hybrid SBR/NR (Styrene-Butadiene/Natural Rubber) hybrid vulcanized rubber fender under monotonic/cyclic compression. In experimental observations of the monotonic compression tests, it was found that lateral deformation occurred on the tested fender and was more significant with increasing the extent of the compressive strain. The relationship between the transmission stress S c and the compressive strain e c was nonlinear and the absorbed strain-energy-density was increased monotonically with the increment of

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14

Tian, Zhenghong, and Jingwu Bu. "Mathematical Model Relating Uniaxial Compressive Behavior of Manufactured Sand Mortar to MIP-Derived Pore Structure Parameters." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/736230.

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The uniaxial compression response of manufactured sand mortars proportioned using different water-cement ratio and sand-cement ratio is examined. Pore structure parameters such as porosity, threshold diameter, mean diameter, and total amounts of macropores, as well as shape and size of micropores are quantified by using mercury intrusion porosimetry (MIP) technique. Test results indicate that strains at peak stress and compressive strength decreased with the increasing sand-cement ratio due to insufficient binders to wrap up entire sand. A compression stress-strain model of normal concrete ext

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15

Zhang, F. F., K. He, B. Huang, and H. L. Chen. "High strain rate compressive behaviour of 6000-series aluminium alloy sheet under SHPB impact loading." IOP Conference Series: Materials Science and Engineering 1270, no. 1 (2022): 012052. http://dx.doi.org/10.1088/1757-899x/1270/1/012052.

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High velocity forming technologies are widely used in manufacturing industries to improve the formability of the aluminum alloy sheets. In order to better control the high velocity forming technologies through numerical simulation, the dynamic compression properties of the thin 6000-series aluminum alloy sheet were investigated by SHPB experiments. The influence of strain rate on the mechanical properties is analyzed in detail. Results show the elastic modulus is independent of the strain rate. However, under high strain rate condition, the yield stress, ultimate compression strength and ducti

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16

Liu, Shi, and Jinyu Xu. "Experimental and Numerical Analysis of Qinling Mountain Engineered Rocks during Pulse-Shaped SHPB Test." International Journal of Nonlinear Sciences and Numerical Simulation 16, no. 3-4 (2015): 165–71. http://dx.doi.org/10.1515/ijnsns-2014-0039.

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AbstractIn order to study the dynamic compression mechanical properties of engineering rock under high strain rate （100~102 S−1）loads, dynamic compression tests of three common engineering rocks (marble, sandstone and granite) taken from the Qinling Mountain are studied subjected to five different kinds of shock air pressure using Φ 100 mm split Hopkinson pressure bar test system improved with purple copper waveform shaper. The dynamic compression stress-strain curves, dynamic compressive strength, peak strain, energy absorption rate and elastic modulus of three rocks variation with strain rat

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17

Ji, Guang Kai, Xiao Liu, and Zhao Qun Du. "Analysis on Plane and Ball Compression Behaviour of Spacer Fabric." Advanced Materials Research 332-334 (September 2011): 1049–52. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1049.

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In present paper, the compression force and strain curve for both plane plate and spherical ball compressions are conducted, where the compression stress and strain curve in plane plate compression is calculated and divided into three linear sections. Each linear region has corresponding compression modulus. In addition, three compression characters of both plate plane and spherical ball compressions are featured as compression work, maximum pressure/force and linear degree. Correlations between the three characters of compression property show that there exist high correlations between compre

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18

Xu, Yiwei, Chunjiang Zhao, Chen Wang, et al. "Compression–Shear Specimen Stress-State Response and Distribution Characteristics with Wide Stress Triaxiality." Materials 17, no. 6 (2024): 1424. http://dx.doi.org/10.3390/ma17061424.

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Conventional methods for studying the plastic behavior of materials involve uniaxial tension and uniaxial compression. However, in the metal rolling process, the deformation zone undergoes a complex loading of multidirectional compression and shear. Characterizing the corresponding plastic evolution process online poses challenges, and the existing specimen structures struggle to accurately replicate the deformation-induced loading characteristics. In this study, we aimed to design a compression–shear composite loading specimen that closely mimics the actual processing conditions. The goal was

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19

Cao, Dafu, Jiaqi Liu, Yanling Zhou, Wenjie Ge, and Xin Zhang. "Experimental Study on the Effect of Freeze-Thaw Cycles on Axial Tension and Compression Performance of Concrete after Complete Carbonization." Advances in Civil Engineering 2021 (October 6, 2021): 1–16. http://dx.doi.org/10.1155/2021/8111436.

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The effect of freeze-thaw cycles on the axial tension and axial compression properties of completely carbonized concrete are investigated in this study. Three grade concrete specimens (C30, C40, and C45) were fabricated. The freeze-thaw cycle test was carried out on the completely carbonized specimens, followed by axial tension and axial compression tests. The results show that completed carbonization increases the axial tensile peak stress of C30, C40, and C45 concrete specimens by 8.7%, 9.7%, and, 12.1%, respectively. The peak axial tension strain increased by 1.9%, 7.2%, and 9.6%, respectiv

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20

Urriolagoitia-Sosa, G., J. F. Durodola, and N. A. Fellows. "Determination of Tensile and Compressive Stress Strain Curves from Bend Tests." Applied Mechanics and Materials 1-2 (September 2004): 133–38. http://dx.doi.org/10.4028/www.scientific.net/amm.1-2.133.

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A new inverse method has been developed for the simultaneous derivation of tensile and compressive stress strain behaviour from bending tests only. This new procedure can be applied to materials having asymmetric tensile and compressive stress strain behaviour and also materials that have been previously strain hardened (Bauschinger Effect). This paper presents results obtained using the new method and compares them with experimentally obtained tensile and compressive stress strain curves. The agreement of the derived stress strain data in tension and compression is encouraging.

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21

Zhao, Dongfu, Haijing Gao, Huixuan Liu, Penghe Jia, and Jianhui Yang. "Fatigue Properties of Plain Concrete under Triaxial Tension-Compression-Compression Cyclic Loading." Shock and Vibration 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/9351820.

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Fatigue tests were performed on plain concrete under triaxial tension-compression-compression (T-C-C) cyclic loading with constant and variable amplitude using a large multiaxial machine. Experimental results show that, under constant amplitude fatigue loads, the development of residual strain in the fatigue loading direction depends mostly on the lateral compressive stress ratio and is nearly independent of stress level. Under variable amplitude fatigue loads, the fatigue residual strain is related to the relative fatigue cycle and lateral compressive stress ratio but has little relationship

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22

Zheng, Xiaotao, Wenchao Dai, Linwei Ma, Wei Wang, Wei Lin, and Jiuyang Yu. "Compressive ratcheting and creep of non-asbestos fibre composite considering temperature effect." Journal of Composite Materials 52, no. 26 (2018): 3579–87. http://dx.doi.org/10.1177/0021998318766227.

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Compressive ratcheting response and creep of non-asbestos fibre composite are tested based on a designed compression–compression clamp for plate-shape specimens. The influences of temperature, stress amplitude and stress rate are discussed in detail. A two-stage constitutive model is developed to describe the compression-resilience relationship of non-asbestos fibre composite. Results present that a crescent-shaped stress–strain relationship of non-asbestos fibre composite is observed under repeated compression, and the proposed two-stage constitutive model can predict the compression-resilien

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23

Muiruri, Amos, Maina Maringa, Willie du Preez, and Leonard Masu. "Effect of Stress-Relieving Heat Treatment on the High Strain Rate Dynamic Compressive Properties of Additively Manufactured Ti6Al4V (ELI)." Metals 10, no. 5 (2020): 653. http://dx.doi.org/10.3390/met10050653.

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A study was undertaken on the compressive high strain rate properties and deformation behaviour of Direct Metal Laser-Sintered (DMLS) Ti6Al4V (ELI) parts in two separate forms: as-built (AB) and stress relieved (SR). The high strain rate compression tests were carried out using a Split Hopkinson Pressure Bar test system at ambient temperature. The average plastic strain rates attained by the system were 400 s−1 and 700 s−1. Comparative analyses of the performance (flow stresses and fracture strains) of AB and SR specimens were carried out based on the results obtained at these two plastic stra

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Andersen, Glen R., Christopher W. Swan, Charles C. Ladd, and John T. Germaine. "Small-strain behavior of frozen sand in triaxial compression." Canadian Geotechnical Journal 32, no. 3 (1995): 428–51. http://dx.doi.org/10.1139/t95-047.

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The stress–strain behavior of frozen Manchester fine sand has been measured in a high-pressure low-temperature triaxial compression testing system developed for this purpose. This system incorporates DC servomotor technology, lubricated end platens, and on-specimen axial strain devices. A parametric study has investigated the effects of changes in strain rate, confining pressure, sand density, and temperature on behavior for very small strains (0.001%) to very large (> 20%) axial strains. This paper presents constitutive behavior for strain levels up to 1%. On-specimen axial strain measurem

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25

Mizuno, Mamoru. "Fundamental mechanical behaviors of dental restorative materials resin composites due to compressive and flexural loading and internal damage evaluation." International Journal of Damage Mechanics 26, no. 6 (2015): 826–39. http://dx.doi.org/10.1177/1056789515624001.

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Development of internal damage within resin composites was evaluated under compressive loading in order to predict crack initiation and fracture. Moreover, three-point bending tests were also carried out in order to clarify mechanical behavior and fracture under tensile stress state in comparison with those under compressive stress state. Both of them were conducted for the purpose of obtaining data to formulate constitutive equations for resin composites and to implement precise numerical simulation. Columnar specimens for compression tests and square pole specimens for three-point bending te

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26

Zhang, Chen, Dongsheng Li, Xiaoqiang Li, and Yong Li. "An Experimental Study of the Tension-Compression Asymmetry of Extruded Ti-6.5Al-2Zr-1Mo-1V under Quasi-Static Conditions at High Temperature." Metals 11, no. 8 (2021): 1299. http://dx.doi.org/10.3390/met11081299.

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The tension-compression asymmetry (TCA) behavior of an extruded titanium alloy at high temperatures has been investigated experimentally in this study. Uniaxial tensile and compressive tests were conducted from 923 to 1023 K with various strain rates under quasi-static conditions. The corresponding yield stress and asymmetric strain hardening behavior were obtained and analyzed. In addition, the microstructure at different temperatures and stress states indicates that the extruded TA15 profile exhibits a significant yield stress asymmetry at different testing temperatures. The flow stress and

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27

Zhao, Zhang, Shang, Fu, Zhang, and Zhao. "Complete Stress–Strain Curves of Self-Compacting Steel Fiber Reinforced Expanded-Shale Lightweight Concrete under Uniaxial Compression." Materials 12, no. 18 (2019): 2979. http://dx.doi.org/10.3390/ma12182979.

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To expand the structural application of steel fiber reinforced expanded-shale lightweight concrete (SFRELC), a self-compacting SFRELC with high-workability was developed based on previous research. As part of the investigation, the present study focuses on the adaptability of formulas used for the complete stress–strain curves of steel fiber reinforced lightweight-aggregate concrete and conventional concrete under uniaxial compression. On the basis of mix proportion of SFRELC, self-compacting SFRELC was designed with the volume fraction of steel fiber as 0%, 0.4%, 0.8%, 1.2%, 1.6%, and 2.0%. E

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28

Zhang, Miao, Qianmin Ma, Yang Chen, Zhuo Liu, and Haoxue Zhou. "Thermal-Related Stress–Strain Behavior of Alkali Activated Slag Concretes under Compression." Materials 16, no. 9 (2023): 3470. http://dx.doi.org/10.3390/ma16093470.

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In this paper, the thermal-related stress–strain behavior of alkali-activated slag (AAS) concretes, with different alkali concentrations and moduli, was studied under compression. After exposure to high temperatures (200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C), a compression test was carried out on the specimens. The stress–strain relationship, axial compressive strength, and elastic modulus were expressed using both a displacement extensometer and the digital image correlation (DIC) technique. It was mainly determined that: (1) With the increase in temperature, the stress–strain curves of th

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29

Jun, Li, T. H. Jacka, and W. F. Budd. "Deformation rates in combined compression and shear for ice which is initially isotropic and after the development of strong anisotropy." Annals of Glaciology 23 (1996): 247–52. http://dx.doi.org/10.3189/s0260305500013501.

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Laboratory-prepared fine-grained, initially isotropic polycrystalline ice samples were deformed under conditions of simple shear with simultaneous uniaxial compression at a constant temperature of −2.0°C. The aim was to investigate the effects of stress configuration on the flow rate of initially isotropic ice and on ice with subsequent stress and strain-induced anisotropy. Experiments were carried out for various combinations of shear and compression with shear stress ranging from 0 to 0.49 MPa and compressive stress ranging from 0 to 0.98 MPa, but such that for every experiment the octahedra

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Jun, Li, T. H. Jacka, and W. F. Budd. "Deformation rates in combined compression and shear for ice which is initially isotropic and after the development of strong anisotropy." Annals of Glaciology 23 (1996): 247–52. http://dx.doi.org/10.1017/s0260305500013501.

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Laboratory-prepared fine-grained, initially isotropic polycrystalline ice samples were deformed under conditions of simple shear with simultaneous uniaxial compression at a constant temperature of −2.0°C. The aim was to investigate the effects of stress configuration on the flow rate of initially isotropic ice and on ice with subsequent stress and strain-induced anisotropy. Experiments were carried out for various combinations of shear and compression with shear stress ranging from 0 to 0.49 MPa and compressive stress ranging from 0 to 0.98 MPa, but such that for every experiment the octahedra

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Sun, Guanglin, Jiangchun Hu, Hongfang Wang, Dewei Li, and Zhiyi Wang. "Mechanical Characterization of Anchor under Uniaxial Compression Loading Conditions." Advances in Materials Science and Engineering 2022 (September 5, 2022): 1–9. http://dx.doi.org/10.1155/2022/8976608.

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Bolt reinforcement technology plays an important role in supporting the construction of many engineering fields, and the uniaxial loading characteristics and behavior tests of anchors have great significance to the research and application of anchors. Therefore, four anchor specimens GA ∼ GD were fabricated and tested to explore the macro and microbehavior characteristics of anchors under uniaxial compression. The stress-strain curves for GA ∼ GC specimens under uniaxial compression were analyzed. The stress-strain curve, elastic strain and creep strain, the failure results, and electrochemica

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Yang, Hui, and Wen Tong Tian. "Microstructure and Stress Variation of Semisolid 7A04 Alloy during Isothermal Compression." Advanced Materials Research 426 (January 2012): 101–5. http://dx.doi.org/10.4028/www.scientific.net/amr.426.101.

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The microstructure and stress variation of semisolid 7A04 alloy have been studied through unconstrictive isothermal compressing test. The results show that the relationships between true stress and true strain at different deformation temperatures and strain rates are the same, and the peak stress in the curve of true stress and true strain mainly depends on deformation temperature and strain rate. Analysis on the microstructure of compressive specimen demonstrates that segregation of liquid-solid phase is mainly affected by strain rate and deformation temperature. There are mainly two kinds o

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33

Watazu, Akira, Masataka Hakamada, Hajime Iwasaki, Ichinori Shigematsu, and Naobumi Saito. "Grain Refinement of Mg-Al-Zn Alloy Bar during Hot Compression." Materials Science Forum 706-709 (January 2012): 1267–72. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1267.

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Grain refinements during hot compression of continuous casting AZ80 alloy bars and extrusive AZ61, AZ80 alloy bars were observed. The hot compression true stress-true strain curves of extrusive AZ61 and AZ80 alloy had similar tendencies, which were that the true stress increased and had a peak around 0.2 true strain, and then the stress decreased and was almost even from about 0.4 true strain. The stress peaks shifted to the high strain side as the compression speed, true strain speed, increased. However, the stress peaks did not shift at different compression temperatures. Fine grains were ob

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Li, Meng Qian, Gang Ma, and Ji Jun Xiao. "Research of Compression and Energy Absorption Characteristics of Polyimide Foam." Applied Mechanics and Materials 541-542 (March 2014): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.30.

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The compression and energy absorption characteristic of polyimide foams with three different densities were analyzed in this paper. The compression properties were characterized by CMT7104 Electronic Universal Testing Machine, and the results show that the compressive stress at the same compressive strain increases with the foam density, and the stress-strain curves of polyimide foams with different densities were all composed of elastic region, plateau region and compacted region. The foams ideal energy-absorption efficiency curves were obtained from their stress-strain curves, and all findin

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Chen, Rongchuang, Jiao Zeng, Guichuan Yao, and Fei Feng. "Flow-Stress Model of 300M Steel for Multi-Pass Compression." Metals 10, no. 4 (2020): 438. http://dx.doi.org/10.3390/met10040438.

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In this work, multi-pass compressions were performed at various strain rates (0.01 s−1, 0.1 s−1, 1 s−1, 10 s−1), temperatures (950 °C, 1050 °C, 1150 °C), inter-pass holding time (1 s, 10 s, 30 s, 120 s, 600 s), interrupt strains (0.3, 0.4, 0.5, 0.6), and total pass numbers (1, 2, 3, 4). The intriguing finding was that the recrystallized fraction, average dislocation density, and plastic cumulative strain were partly eliminated during inter-pass holding, resulting in the early occurrence of recrystallization in subsequent compression. Therefore, a parameter (Θ) to evaluate the overall softening

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Liu, Yu Jie, and Bin Qiang. "The Stress-Strain Behaviors of High Density Aluminum Foam under Monotonic and Cyclic Loading." Applied Mechanics and Materials 464 (November 2013): 69–72. http://dx.doi.org/10.4028/www.scientific.net/amm.464.69.

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The stress-strain behaviors were investigated by monotonic and cyclic stressing tests for high density aluminum foam at room temperature. The cyclic accumulations of deformation for the material were measured in varied loading levels. The effects of mean stress and stress ratio on the ratcheting strain were discussed. The experimental results show that tension response is different from the compressive response. There is obvious cyclic accumulations of deformation (i.e., ratcheting effect) under compression-compression cyclic loading even if the holistic stress-strain response is linear. And t

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Xiang, Jiajie, Yuxuan Zheng, Jiang Li, and Zhanqiu Tan. "Mechanical Response of CNT/2024Al Composite to Compression and Tension at Different Strain Rates." Metals 13, no. 2 (2023): 254. http://dx.doi.org/10.3390/met13020254.

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Compressive and tensile properties of a carbon nanotube (CNT) reinforced 2024Al composite are investigated under quasi-static and dynamic compression as well as quasi-static tension, along three different directions (extrusion, normal and transverse directions). Upon compression, yield and fracture strengths of the composite show negligible strain rate effect and mechanical anisotropy as manifested in the compressive stress–strain curves. Fractography and profilometry show that fracture surfaces are rough shear fracture planes for quasi-static compression; however, smooth conical fracture surf

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Chen, Cheng, and Zheng Ming Zhou. "A New Nonlinear Stress-Strain Model for Soils at Various Strain Levels." Advanced Materials Research 631-632 (January 2013): 782–88. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.782.

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Soils have nonlinear stiffness and develops irrecoverable strains even at very small strain levels. Accurate modeling of stress-strain behaviour at various strain levels is very important for predicting the deformation of soils. Some existing stress-strain models are reviewed and evaluated firstly. And then a new simple non-linear stress-strain model is proposed. Four undetermined parameters involved in the proposed model can be obtained through maximum Young’s module, deformation module, and limit deviator stress and linearity index of soils that can be measured from experiment directly or ca

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Fortin, M., J. Soulhat, A. Shirazi-Adl, E. B. Hunziker, and M. D. Buschmann. "Unconfined Compression of Articular Cartilage: Nonlinear Behavior and Comparison With a Fibril-Reinforced Biphasic Model." Journal of Biomechanical Engineering 122, no. 2 (1999): 189–95. http://dx.doi.org/10.1115/1.429641.

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Mechanical behavior of articular cartilage was characterized in unconfined compression to delineate regimes of linear and nonlinear behavior, to investigate the ability of a fibril-reinforced biphasic model to describe measurements, and to test the prediction of biphasic and poroelastic models that tissue dimensions alter tissue stiffness through a specific scaling law for time and frequency. Disks of full-thickness adult articular cartilage from bovine humeral heads were subjected to successive applications of small-amplitude ramp compressions cumulating to a 10 percent compression offset whe

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Kubík, Ľ., and V. Kažimírová. "Mechanical properties of pellets in compression." Research in Agricultural Engineering 61, Special Issue (2016): S1—S8. http://dx.doi.org/10.17221/17/2015-rae.

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The paper deals with the evaluation of mechanical properties of the cylinder pellet samples. The pellets were made from hay by the granulating machine MGL 200 (Kovonovak) provided by the Department of Production Engineering, Slovak University of Agriculture in Nitra. The pellets were submitted to compressive loading. The compressive loading curves of dependencies of force on strain and force on time were realised by the test stand Andilog Stentor 1000. Certain mechanical parameters were determined, namely the diameter of the sample, length of the sample, force at 10% of strain, force in the fi

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van Schalkwyk, F., and E. Kearsley. "The influence of concrete compressive strength and specimen size on the compression stress block parameters of reinforced concrete." Journal of the South African Institution of Civil Engineering 60, no. 4 (2018): 34–44. http://dx.doi.org/10.17159/2309-8775/2018/v60n4a.

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This paper describes the influence of concrete compressive strength and specimen size on the fundamental characteristics of the flexural compressive stress-strain distribution. The main variables were specimen size and cylinder compressive strength. A total of 27 concrete specimens were subjected to flexural tests, with specific reference to analysis of the compression stresses, produced by varying two independent loads in a configuration aimed at controlling the strain distribution. These loads generated a condition of zero strain on the one face of the specimen, and a condition of maximum fl

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Fung, Y. C., R. T. Yen, Z. L. Tao, and S. Q. Liu. "A Hypothesis on the Mechanism of Trauma of Lung Tissue Subjected to Impact Load." Journal of Biomechanical Engineering 110, no. 1 (1988): 50–56. http://dx.doi.org/10.1115/1.3108405.

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When a compressive impact load is applied on the chest, as in automobile crash or bomb explosion, the lung may be injured and show evidences of edema and hemorrhage. Since soft tissues have good strength in compression, why does a compression wave cause edema? Our hypothesis is that tensile and shear stresses are induced in the alveolar wall on rebound from compression, and that the maximum principal stress (tensile) may exceed critical values for increased permeability of the epithelium to small solutes, or even fracture. Furthermore, small airways may collapse and trap gas in alveoli at a cr

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Zhao, Xinyuan, Ke Yang, Xiang He, Zhen Wei, Jiqiang Zhang, and Xiang Yu. "Study on Characteristics of Compression Deformation and Post-Peak Stress Rebound for Solid Waste Cemented Body." Minerals 13, no. 1 (2023): 108. http://dx.doi.org/10.3390/min13010108.

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Most of the previous studies focused on the mechanical characteristics before the stress peak of solid waste cemented backfill, but in the compression process of a solid waste cemented body, the phenomenon of post-peak stress rebound often occurs. Through the uniaxial compression experiment of a solid waste cemented body composed of coal gangue, fly ash, desulfurization gypsum, gasification slag, and furnace bottom slag, this paper analyzed the compression deformation characteristics of a solid waste cemented body with different mix proportions before and after the stress peak, established the

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Sultanov, Karim, Pavel Loginov, Sabida Ismoilova, and Zulfiya Salikhova. "Variable moduli of soil strain." E3S Web of Conferences 97 (2019): 04013. http://dx.doi.org/10.1051/e3sconf/20199704013.

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The experimental diagrams between stress and strain components for soft soils are non-linear. Nonlinear diagrams qualitatively differ for soils of undisturbed and disturbed structures. It is believed that the manifestations of nonlinear properties of soil are associated with micro-destruction of soil structure under compression and, therefore, with changes in its mechanical characteristics under strain. It follows that the modulus of elasticity, Poisson’s ratio, viscosity and other mechanical parameters are the variables in the process of soil strain. Based on this, from the experimental resul

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Li, Xiu Ling, and Juan Wang. "Experimental Study on the Uniaxial Compression Curves of Green High-Performance Fiber-Reinforced Cementitious Composites (GHPFRCC)." Advanced Materials Research 893 (February 2014): 201–4. http://dx.doi.org/10.4028/www.scientific.net/amr.893.201.

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Green high performance fiber reinforced cementitious composites (GHPFRCC) is the optimized mix proportion of engineered cementitious composites (ECC) with high volume of fly ash and polyvinyl alcohol (PVA) fiber. To study the compressive performance, the prism stress-strain relationship of GHPFRCC is the focus in this study. There are sixteen groups of GHPFRCC specimens with the size 40mm×40mm×160mm. The compressive stress-strain curves were obtained based on the uniaxial compression tests. Experimental results show that the uniaxial compression stress-strain curve belongs to the skewed unimod

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Wang, X. B. "Temperature-Dependent Shear Strain Localization of Aluminium-Lithium Alloy in Uniaxial Compression Using Zerilli-Armstrong and Gradient Plasticity Models." Materials Science Forum 519-521 (July 2006): 789–94. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.789.

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Gradient-dependent plasticity where a characteristic length is involved to consider the microstructural effect (interactions and interplaying among microstructures due to the heterogeneous texture) is introduced into Zerilli-Armstrong model based on the framework of thermally activated dislocation motion. Effect of initial temperature on the distributions of plastic shear strain and deformation in adiabatic shear band (ASB), the axial compressive stress-axial compressive strain curve, the shear stress-average plastic shear strain in ASB curve and the plastic shear strain corresponding to the o

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Shao, Zhaoqun, Min Zhu, Tianxi Liang, et al. "The Variety of the Stress–strain Response of Silicone Foam after Aging." Polymers 14, no. 17 (2022): 3606. http://dx.doi.org/10.3390/polym14173606.

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The mechanical properties of silicone foam will degrade when exposed to environmental loads such as temperature and pressure for a long time. In recent years, the variation law of the stress–strain response of silicone foam during the aging process has received more and more attention, but there are few works that quantitatively analyze the variation of the stress–strain response. In this work, we quantitatively analyzed the variation law of the stress–strain response of silicone foam during aging by the constitutive model. Firstly, the accelerated aging test of silicone rubber foam under long

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Pellegrino, Antonio, Maria Jesus Perez-Martin, Kalin Dragnevski, Giuseppe Zumpano, and Nik Petrinic. "Temperature and strain rate dependent mechanical response of METCO 601 aluminium-polyester abradable seal coating." EPJ Web of Conferences 183 (2018): 04012. http://dx.doi.org/10.1051/epjconf/201818304012.

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Abradable coatings are utilised as sacrificial materials in low-pressure compressor casings, and in intermediate and high pressure compressors and seals. The adoption of abradable coatings allows for the clearance between compressor blades and casing to be minimised, increasing the overall efficiency of the engine. Quasi-static and dynamic experiments at different temperatures are conducted to characterise the mechanical response of a thermally-sprayed abradable seal coating. The material is composed of an aluminium continuum matrix and fairly well-dispersed polyester particles. Stress versus

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Toyeb, Muhammad. "ANALISIS BALIK KUAT GESER TANAH TERSTABILISASI SEMEN DENGAN METODE NUMERIK." Racic : Rab Construction Research 5, no. 1 (2020): 48–57. http://dx.doi.org/10.36341/racic.v5i1.1315.

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Shear strenght is a parameter to soils strenght analysis. Shear strenght can be obtained from laboratorium test that interpreted as stress and strain. Soil tests had done on soil stabilization of cement with mixing 5%; 10%; 15% of content. Soil tests were used by triaxial test of unconsolidated undrained (triaxial UU) with cell pressure at 50; 100; 200 kN/m2 and unconfined compression test. The test specimens were disturbed soil samples which compacted and remolded, and then carry out curing for 0; 3; 7; 14; 28 days. The laboratory test results were back analysis in Plaxis 2D by using Mohr-Cou

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Kubík, Ľubomír, Viera Kažimírová, and Monika Božiková. "Compressive Loading of Apple Cultivar Golden Delicious." Acta Technologica Agriculturae 25, no. 3 (2022): 144–49. http://dx.doi.org/10.2478/ata-2022-0022.

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Abstract The study dealt with the experimental and numerical assessment of the apple cultivar Golden Delicious (Malus domestica L.) at compressive loading in lateral direction. The development of fruit hemisphere behaviour was examined between two parallel plates. Apple samples were subjected to tests at different strain rates. The experiments were conducted at eleven velocities from 10 to 350 mm·min−1 for the purposes of achieving different strain rates. Compression tests of the fruits at different strain rates corresponded to the quasi-state loading. Impacts of loading rate and strain rate o

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