|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Analysis on Deformation Behavior of High Strength Steel Using the Finite Element Method in Conjunction with Constitutive Model Considering the Elongation at Yield Point
||Seung Chae Yoon, Ki Joung Kim, Young Chul Park, Gi Hak Yim, Je Youl Kong, Jeamyoung Park, Byoung Ryoul Min, Yoo Dong Chung
|On-Site Speaker (Planned)
||Seung Chae Yoon
Tensile tests are widely used for estimating mechanical properties of materials including flow curves as well as Young’s modulus, yield strength, tensile strength and yield point elongation. This paper aims at analyzing the plastic flow behavior of high strength steels for automotive bodies using the finite element method in conjunction with the viscoplastic model considering the yield point elongation phenomenon. The plastic flow behavior of the high strength steel was successfully predicted, by considering an operating deformation mechanism, in terms of normalization dislocation density, strain hardening and accumulative damage of high strength steel using the modified constitutive model. In addition, the finite element method is employed to track the properties of the high strength steel pertaining to the deformation histories in a skin pass mill process.
||Definite: At-meeting proceedings