Mechanical Sublayer Model for Elastic-Plastic Analyses
Strain-hardening behavior for plane stress problems is modeled by a panel with n-layers, the first (n-1) layers are elastic- perfectly plastic under Mises-Hencky condition, each with different yield stress, and the n-th layer is elastic. Equivalent incremental stress-strain relations for the panel can be obtain- ed. The resulting uniaxial stress-strain curve contains n segments. Those segments in the plastic range are not straight lines.
KeywordsTangent Modulus Multilayer Model Plane Stress Problem Overlay Model Uniaxial Loading Condition
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