A Generalized Model towards Predicting Monotonic and Cyclic Deformation Behavior of Cyclically Stable Materials

摘要

This work presents a generalized approach based on combined isotropic kinematic hardening (CIKH) model to simulate the deformation behavior of cyclically stable materials (CSMs). The proposed methodology provides a single set of hardening parameters obtained using genetic algorithm optimization technique which is used to simulate the response of CSMs under both monotonic and cyclic loading conditions. Reported experimental results of two ferrous and two non-ferrous materials from the existing literature are re-examined to demonstrate the potential of the proposed methodology. The explanation of the observed and the predicted monotonic and the cyclic deformation response of the CSMs are next substantiated in the light of micro-mechanism of deformation.