A parallel finite element procedure for contact-impact problems

被引:11
作者
Har, J
Fulton, RE
机构
[1] Korea Inst Aerosp Technol, Taejon, South Korea
[2] Georgia Inst Technol, Dept Mech Engn, Atlanta, GA 30332 USA
关键词
contact-impact; domain decomposition; explicit time integration; finite element; MPI; parallel computing;
D O I
10.1007/s00366-003-0252-4
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
An efficient parallel finite element procedure for contact-impact problems is presented within the framework of explicit finite element analysis with the penalty method. The procedure concerned includes a parallel Belytschko-Lin-Tsay shell element generation algorithm and a parallel contact-impact algorithm based on the master-slave slideline algorithm. An element-wise domain decomposition strategy and a communication minimization strategy are featured to achieve almost perfect load balancing among processors and to show scalability of the parallel performance. Throughout this work, a prototype code, named GT-PARADYN, is developed on the IBM SP2 to implement the procedure presented, under message-passing paradigm. Some examples are provided to demonstrate the timing results of the algorithms, discussing the accuracy and efficiency of the code.
引用
收藏
页码:67 / 84
页数:18
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