LS-DYNA无网格伽辽金方法在轧制过程三维仿真分析中的应用  

EFG method's application in the 3D simulation of rolling process in LS-DYNA

作　　者：康永林[1] 朱国明[1] 陈伟[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《塑性工程学报》2007年第4期140-146,共7页Journal of Plasticity Engineering

摘　　要：文章介绍了无网格方法的进展情况,详细论述了LS-DYNA中的EFG方法;成功地将三维EFG方法应用于轧制过程的仿真分析;完成了三维简单轧制及H型钢万能轧制过程的EFG仿真分析,并与传统的FEM方法进行了对比。证明了EFG方法在三维轧制仿真中的可行性,阐述了EFG方法在大变形仿真分析中的优势。This paper presents the development of the mesh free method and explicates the EFG method in LS-DYNA. Application of the 3D EFG method in the rolling process analysis is successful. The simple rolling process and universal H-beam rolling process are analyzed with 3D EFG method. Compared with the standard FE method, it shows that the EFG method is feasible in the 3D simulation of rolling process, and even more potential for more accurate calculations in the field of metal forming.

关 键 词：无网格 EFG FEM轧制过程 LS-NYNA 

分 类 号：TG33[金属学及工艺—金属压力加工]