无网格法及其在金属塑性成形中的应用*  

Meshless methods and its application in metal forming

作　　者：崔青玲[1] 李长生[1] 刘相华[1] 王国栋[1] 熊尚武 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室 [2]Department of Mechanical Engineering, Northwestern University,2145 Sheridan Road, 60208 Evanston, IL, U.S.A.

出　　处：《塑性工程学报》2005年第1期38-42,共5页Journal of Plasticity Engineering

基　　金：973 国家重点基础研究发展规划资助项目(G2000067208 4)

摘　　要：介绍了SPH, RKPM和EFG等几种无网格法的研究进展及其在金属成形问题中的应用情况, 以及无网格法在求解过程中与有限元的主要区别, 最后以平面应变镦粗过程为例, 并和有限元法对比, 说明无网格法在求解金属成形大变形问题中的优越性和存在的主要问题, 并提出今后发展的方向。This paper presents the research development of the meshless method such as SPH, RKPM and EFG and their applications in metal forming process. The differences between meshless method and finite element method are also introduced. Comparing with the finite element method, the advantages of meshless method in metal forming process are tested by the plain strain upsetting process. And the main problem and the developing trend are also introduced.

关 键 词：无网格法 金属成形 有限元法 镦粗 

分 类 号：TG316[金属学及工艺—金属压力加工]