Parameter Identification of Chaboche Model for Aluminum Alloy Sheets Based on Differential Evolution Algorithm

Springback prediction is one of the most challenging in finite element analysis for sheet metal forming processes. The demand requests development a kinematic hardening model and parameter identification. This study presents schematic strategy to identify parameters Chaboche’s based on differential evolution optimization method. To this goal, several tension-compression (TC) tests were conducted observe Bauchinger’s effects behaviors two aluminum alloy sheets: AA6022-T6 AA7075-T76. A Python code developed apply proposed method identifying model. calibrated material models implemented Abaqus software simulate V-bending U-bending investigated materials. predictions springback amount match well with experimental measurements, which verifies effectiveness presented identificationstrategy.This an Open Access article distributed under terms Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), permits unrestricted use, distribution, reproduction any medium provided original work properly cited.