板料成形模拟中动态边界条件的处理  

Handing of Dynamic Interface Conditions in Simulation of Sheet Metal Forming

作　　者：向毅斌[1] 陈敦军[1] 吴诗惇[1] 

机构地区：[1]西北工业大学材料科学与工程学院,陕西西安710072

出　　处：《模具技术》2000年第4期3-6,共4页Die and Mould Technology

摘　　要：采用塑性有限元法对金属板料成形过程进行数值模拟时 ,为获得可信的计算结果 ,需要对工件与模具间动态接触边界条件进行处理。本文在全面分析成形中工件与模具接触边界动态变化的基础上 ,给出了动态边界条件识别与处理的具体方法。通过具体应用实例分析 ,证明了该方法应用于板料塑性成形分析的可行性。When plastic FEM is used to numerically simulate the process of sheet metal forming, handling of dynamic contact interface conditions between the workpiece and its dies is needed to obtain credible computational results. In this paper, based on comprehensive analysis of the dynamic variation of the contact interface between the workpiece and its dies, material methods to identify and handle the dynamic interface conditions are presented. Through analysis of the specific example, the feasibility of the methods is proved.

关 键 词：板料成形 有限元模拟 动态边界 

分 类 号：TG302[金属学及工艺—金属压力加工] TG306