This paper proposes a simple two-surface model for cyclic incremental plasticity based on combined Mroz and Ziegler kinematic hardening rules under nonproportional loading. The model has only seven material constants and a nonproportional factor which describes the degree of additional hardening. Cyclic loading experiments with fourteen strain paths were conducted using Type 304 stainless steel. The simulation has shown that the model was precise enough to calculate the stable cyclic stress-strain relationship under nonproportional loadings. [S0094-4289(00)00101-8]

Issue Section:
Technical Papers
Keywords:
stress-strain relations, stainless steel, hardening, plasticity, fatigue, deformation
Topics:
Hardening, Kinematics, Plasticity, Stainless steel, Stress, Stress-strain relations, Shear (Mechanics), Low cycle fatigue
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