A general yield function with differential and anisotropic hardening for strength modelling under various stress states with non-associated flow rule
International Journal of Plasticity(2022)
摘要
•A function is proposed to model differential hardening under various states.•Convexity is calculated by geometric-inspired numerical convex analysis method.•Parameters are analytically computed to guarantee accuracy and user-friendliness.•Yield surface evolution is automatically captured in distinct stress states.
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关键词
Anisotropic hardening,Differential hardening,Non-associated flow rule,Strength differential effect,Convexity
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