高强度钢板热成形数值模拟-静力显式

在已建立的高强度钢热成形热、力、相变耦合本构方程的基础上,基于虚功率方程及持续平衡方程建立了热成形静力显式多场耦合有限元列武。将热成形过程中的相变潜热引入温度场，并进行了有限元分析；在自主开发的商业化金属成形CAE软件KMAS(King-Mesh Analysis System)基础上,开发了考虑多场耦合的非线性、大变...

Study of hot forming for high strength steel: numerical simulation-static explicit algorithm

Based on the developed multi-field coupled, rate-dependent constitutive equation of hot forming and the finite strain virtual power equation and continuous equilibrium equation based on Updated Lagrange method, the large-deformation,multi-field coupled, static explicit finite element equations of hot forming are established. The phase transformation latent heat is introduced into the analysis of temperature field during the hot forming process. Based on the independently developed commercial CAE software for sheet metal forming, named KMAS (King-Mesh Analysis System), the numerical simulation module of hot forming is developed, which considers multi-field coupled, nonlinear and large deformation analysis. 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 experiments. The experimental results indicate the validity and efficiency of the present constitutive model and numerical simulation software KMAS introducing the hot forming.