Study on Contact Algorithm of Dynamic Explicit FEM for Sheet Forming Simulation

作     者：Zhang Hai-ming Dong Xiang-huai Li Zhi-gang 

作者机构：State Key Laboratory of PFSDMT Huazhong Univ. of Sci./Technology Wuhan 430074 China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2001年第6卷第3期

页      面：704-708页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：the National Natural Science F oundation of China (5 9875 0 2 5 ) and Excellent Young Teacher Founda-tion of the Educational Departm ent of China 

主　　题：contact algorithm dynamic explicit FEM sheet metal forming 

摘      要：Based on existing algorithms, a newly developed contact search algorithm is proposed. The new algorithm consists of global search, local searching, local tracking and penetration calculation processes. It requires no iteration steps. It can deal with not only general tool surfaces with vertical walls, but also tool surfaces meshed with elements having very poor aspect ratios. It is demonstrated that the FE code employing this new contact search algorithm becomes more reliable, efficient and accurate for sheet metal forming simulation than conventional ones.