摘要
高强度钢板具有更高的强度和良好的成形性能,但在实际生产中模具容易损坏。为了解决这个问题,使用通用动力分析求解器LS-DYNA对拉延过程进行了仿真,获得了不同时刻凸模应力-应变分布情况。根据有限元分析结果,运用ANSYS的FATIGUE模块对凸模进行了疲劳分析,获得了凸模的疲劳寿命。基于疲劳寿命分析结果,结合实际设计和制造经验,运用HYPERWORKS的OPTISTRUCT模块对凸模结构进行了拓扑优化设计。在满足使用寿命的前提下,能有效减小凸模的重量及冲压过程中的峰值应力。这能为同类型高强钢冲压凸模设计提供参考。
High strength steel plate has higher strength and better formability, but the die is easy to damage in actual production. To solve this problem, drawing process was simulated with general dynamic analysis solver LS-DYNA, and stress-strain distribution on punch in different stages was obtained. According to the results of finite element analysis, the punch fatigue analysis was conducted with FATIGUE module of ANSYS, and the fatigue life of the punch was obtained.Based on the analysis results of fatigue life, combining with practical experience in the design and manufacture, topology optimization design was also conducted by using OPTISTRUCT module of HYPERWORKS. On the premise of fatigue life,the weight of the punch and the peak stress in stamping process can be effectively reduced. This can provide reference for the same type of high-strength steel stamping punch design.
出处
《热加工工艺》
CSCD
北大核心
2016年第5期135-140,共6页
Hot Working Technology
关键词
高强钢
冲压
疲劳寿命
拓扑优化
high strength steels
stamping
fatigue life
topology optimization
