Improved prediction of strain distribution during mechanical and hydro-mechanical deep drawing processes using microstructure-based dynamic strain hardening and anisotropy

摘要: Interstitial free (IF) and drawing quality (DQ) steel sheets were subjected to conventional mechanical deep hydro-mechanical operations. Detailed macroscopic strain measurements made at different cup depths. These simulated using PAM-STAMP, a commercial finite element–based software. For continuum-based element simulations, the required key material properties are hardening exponent (n) anisotropy index (r¯). kept either constant or dynamically varied during simulation. The taken from tensile tests of original material, while dynamic variation in was extrapolated developments crystallographic texture in-grain misorientation. Considering simulation provided superior prediction strains. This study clearly demonstrates need for considering evolution critical continuum properties, such as work ind...