Non-proportional hardening models for predicting mean and peak stress evolution in multiaxial fatigue using Tanaka’s incremental plasticity concepts
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- 作者：Marco Antonio Meggiolaroa ; meggi@puc-rio.br" class="auth_mail" title="E-mail the corresponding author ; Hao Wub ; wuhao@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Jaime Tupiassú ; Pinho de Castroa ; jtcastro@puc-rio.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Multiaxial fatigue ; Non-proportional loadings ; Non-proportionality factor ; Additional NP hardening
- 刊名：International Journal of Fatigue
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：82
- 期：part_P2
- 页码：146-157
- 全文大小：2096 K
文摘
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Tanaka’s non-proportional (NP) model presented in a special 5D plastic strain space.
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Evolution equation for the NP factor as a function of accumulated plastic strain.
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Tanaka’s tensor’s eigenvectors are principal dislocation directions.
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Two new integral estimates for the steady-state NP factor are proposed.
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Validated from NP tension–torsion experiments with 316L steel tubular specimens.
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