Mechanical sublayer model for elastic-plastic analyses

摘要

Strain-hardening behavior for plane stress problems is modeled by a panel withnlayers, the first (n- 1) layers are elastic-perfectly-plastic under Mises-Hencky condition, each with different yield stress, and then-th layer is elastic. Equivalent incremental stress-strain relations for the panel can be obtained. The resulting uniaxial stress-strain curve containsnsegments. Those segments in the plastic range are not straight lines.