Modeling and Numerical Simulation of Hot Forming
Thermal-mechanical-transformation coupled relations of boron steel are investigated in the hot forming (hot stamping) process by tensile and quenching experiments at high temperature. Based on the experimental results,the thermalmechanical-transformation coupled constitutive models are provided. The strain,strain rate,transformation plasticity, transformation latent heat and temperature dependency of a boron steel is introduced into the constitutive equations. Then the numerical simulation model of hot forming related to multi coupled fields with temperature dependency are developed and implemented into the independently developed commercial CAE software for sheet metal forming,named KMAS (KingMesh Analysis System). Then the hot stamping process of a reinforced beam inside the automobile door is simulated by the KMAS software,and compared with its hot forming experiment. The experimental results indicate the validity and efficiency of the present constitutive model and numerical simulation software KMAS introducing the hot forming.
hot forming (hot stamping) constitutive equation multi coupled fields KMAS software numerical simula
Ma Ning Hu Ping Shen Guozhe Wu Wenhua Guo Wei
School of Automobile Engineering,Dalian University of Technology,Dalian 116024,China State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian 116024,China School of A State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian 116024.China Coilege of nlaterials Science and EngiBeering,Jilin University,Changchun 130025,China
国际会议
2009 International Symposium on Automobile Steel(2009年汽车用钢生产及应用技术国际研讨会)
大连
英文
362-367
2009-09-06（万方平台首次上网日期，不代表论文的发表时间）