|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Predicting Forming Limit Diagrams Using CPFE Incorporated M-K Model for AZ31 Sheet
||Hyuk Jong Bong, Jinwoo Lee, Xiaohua Hu, Xin Sun, Myoung-Gyu Lee
|On-Site Speaker (Planned)
||Hyuk Jong Bong
A scheme to predict forming limit diagram (FLD) based on a crystal plasticity model was developed and used to predict FLDs of wrought magnesium alloys, i.e., AZ31 and ZE10. Two representative volume elements (RVEs), representing uniform and imperfect areas in well-known M-K model, were made. The RVE simulation of uniform area was first conducted and that of imperfect area was followed with boundary conditions obtained by force equilibrium and strain compatibility conditions. The predicted FLDs for the two magnesium alloys were compared with the experimental data at 200˚C above which the investigated materials become ductile. The predictions are in excellent agreement with the experimental data. The microstructural changes during various loading paths from uniaxial to balanced biaxial tensions were investigated within crystal plasticity framework to understand the underlying micro-mechanisms for the observed macroscopic responses.
||Definite: At-meeting proceedings