|
|||||
|
|
Effect of hardening laws and yield function types on spring-back simulations of dual-phase steel automotive sheets |
|
| Authors: | Junehyung Kim Wonoh Lee Daeyong Kim Jinhak Kong Chongmin Kim Michael L. Wenner Kwansoo Chung |
| Affiliation: | 1. School of Material Science and Engineering, Seoul National University, 56-1, Shinlim-dng, Gwanak-gu, 151-742, Seoul, Korea 2. Research & Development Division for Hyundai Motor Company & Kia Motors Corporation, 772-1, Jangduk-dong, Whasung-si, 445-706, Gyunggi-do, Korea 3. Materials and Process Lab., R&D Center & NAO Planning General Motors, 48090-9055, Warren, MI, USA 4. Manufacturing Systems Research Lab., R&D Center & NAO Planning General Motors, 48090-9055, Warren, MI, USA |
| Abstract: | In order to simulate the spring-back of DP-steel automotive sheets, the effect of hardening laws and yield function types has been studied based on finite element simulations performed for 2-D draw bending and S-rail tests. Specifically, the performance of the combined isotropic-kinematic hardening based on the modified Chaboche model was compared with those of the pure isotropic hardening and kinematic hardening laws, along with the non-quadratic anisotropic yield (Yld2000-2d) and Mises yield functions. As for the 2-D draw bending test, numerical results were compared with experimental results for verification purposes. |
| Keywords: | hardening law yield function spring-back dual-phase steel 2-D draw bending S-rail |
| 本文献已被 SpringerLink 等数据库收录！ | |