Abstract
Whether the concept of effective stress and strain in elastic-plastic theory is still valid under the condition of finite deformation was mainly discussed. The uni-axial compression experiments in plane stress and plane strain states were chosen for study. In the two kinds of stress states, the stress-strain curve described by logarithm strain and rotated Kirchhoff stress matches the experiments data better than the curves defined by other stress-strain description.
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Communicated by SHEN Ya-peng
Biography: ZHOU Zhe (1962∼), Associate Professor, Doctor
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Zhe, Z., Ling-li, Q., Wen-bin, H. et al. Effective stress and strain in finite deformation. Appl Math Mech 25, 595–604 (2004). https://doi.org/10.1007/BF02437608
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DOI: https://doi.org/10.1007/BF02437608