材料模型对金属成形过程模拟效率及精度的影响  

Influence of Material Model Upon Simulation Efficiency and Precision of Mental Forming

作　　者：黄明[1] 陈金明[1] 汪俊文[1] 李明珍[1] 

机构地区：[1]中国工程物理研究院机械制造工艺研究所,四川绵阳621900

出　　处：《四川大学学报（工程科学版）》2001年第5期89-93,共5页Journal of Sichuan University (Engineering Science Edition)

基　　金：中国工程物理研究院基金资助项目 ( 980 341)

摘　　要：采用不同的材料模型 (刚粘塑性、大变形弹塑性 )及大变形弹塑性热力耦合方法 ,对两类零件的成形过程进行了有限元模拟 ,并对有限元模拟效率及精度进行了分析研究 。In this paper, different material models:(rigid viscous plastic, large deformation elasto plastic)and coupled large deformation elasto plastic method are applied to analyze the forming process of different part. Some analysis on simulation efficiency and precision was carried on due to the need of research. The results of simulation are compared with experiment. In the end, some advices on FEM models are submitted to improve the efficiency and precision of simulation.

关 键 词：材料模型 金属 模拟精度 模拟效率 塑性成形过程 有限元模型 

分 类 号：TG24[金属学及工艺—铸造]