Stress-strain Curve Estimation Procedure for Large Strain Including Post-necking Strain

2019 ◽  
Vol 88 (8) ◽  
pp. 621-623
Author(s):  
Masayuki KAMAYA
Keyword(s):  
Large Strain ◽  
Strain Curve ◽  
Estimation Procedure ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Curve Estimation

201 Stress-strain curve estimation of anisotropic plastic materials using indentation method

2010 ◽  
Vol 2010.85 (0) ◽  
pp. _2-1_
Author(s):  
Keishi YONEDA ◽  
Akio YONEZU ◽  
Masayuki SAKIHARA ◽  
Hiroyuki HIRAKATA ◽  
Koji MINOSHIMA
Keyword(s):  
Strain Curve ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Indentation Method ◽  
Curve Estimation ◽  
Plastic Materials ◽  
Anisotropic Plastic

Measurement method for stress–strain curve in a super-large strain range

2014 ◽  
Vol 600 ◽  
pp. 82-89 ◽  
Author(s):  
Yasuhiro Yogo ◽  
Masatoshi Sawamura ◽  
Masafumi Hosoya ◽  
Michiaki Kamiyama ◽  
Noritoshi Iwata ◽  
...  
Keyword(s):  
Measurement Method ◽  
Large Strain ◽  
Strain Curve ◽  
Strain Range ◽  
Stress Strain Curve ◽  
Stress Strain

scholarly journals Stress-strain curve of pure aluminum in a super large strain range with strain rate and temperature dependency

2017 ◽  
Vol 207 ◽  
pp. 161-166 ◽  
Author(s):  
Yasuhiro Yogo ◽  
Masatoshi Sawamura ◽  
Risa Harada ◽  
Kosei Miyata ◽  
Noritoshi Iwata ◽  
...  
Keyword(s):  
Strain Rate ◽  
Large Strain ◽  
Pure Aluminum ◽  
Strain Curve ◽  
Strain Range ◽  
Temperature Dependency ◽  
Stress Strain Curve ◽  
Stress Strain

A Tensile Characterization Study of Metal Sheet in Large-Strain

2006 ◽  
Author(s):  
W. J. Dan ◽  
W. G. Zhang ◽  
S. H. Li ◽  
Z. Q. Lin
Keyword(s):  
Large Strain ◽  
True Strain ◽  
Digital Camera ◽  
Strain Curve ◽  
Plastic Instability ◽  
Tensile Specimen ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Tension Tests ◽  
Tensile Experiment

A method for determining the strain-stress curve of larger-strain is proposed when plastic instability occurs in standard tension tests. Thin tested steel sheet is subjected to tension loading until fracture occurs. The deformation process is captured with a digital camera. Displacement and strain field of material deformation can be calculated by a mesh-free PIM method. A tensile experiment is simulated to verify that local measuring stress-strain curve by PIM method near the center of the specimen can describe a full stress-strain curve clearly. Numerical simulation results, at different location along the specimen axial, present that different parts of specimen have different deformation distribution in tensile and the center fracture part of tensile specimen is the only region which can experience full strain. The true stress- true strain curves, based on the estimated parameters, are validated in all strain regions by comparison with curves from standard tension tests. The measured curves by PIM method are very stabilization. Compared with several material constitutive equations, The Swift’s equation is very close to experiment curve at plastic deformation.

Towards the Problem of Construction an SPD Stress-Strain Curve for Low-Plastic Materials

2020 ◽  
Vol 839 ◽  
pp. 189-195
Author(s):  
Pavel G. Morrev ◽  
Kostya I. Kapyrin ◽  
I.M. Gryadunov ◽  
Sergey Y. Radchenko ◽  
Daniil O. Dorokhov ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Shear Band ◽  
Severe Plastic Deformation ◽  
Initial Segment ◽  
Large Strain ◽  
Strain Curve ◽  
Deep Rolling ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Plastic Materials

Stress-strain curve construction for low-plastic alloys under severe plastic deformation conditions is considered. A material under investigation is cast bronze Cu85-Pb5-Sn5-Zn5. Experiments on upsetting and deep rolling were conducted. Based on these data, the initial hardening modular and the hardening modular at large strain were evaluated. Classic tests on determining an initial segment of stress-strain curve can lead to grate mistakes because shear band sliding can diminishes appreciably both yield stress and hardening modular. A correct methodology for stress-strain curve construction is proposed.

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