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A new scalable parallel finite element approach for contact-impact problems
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A new scalable parallel finite element approach for contact-impact problems
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Dissertation
A new scalable parallel finite element approach for contact-impact problems
1998
Overview
Parallel processing using a multiple instruction multiple data (MIMD) parallel computer is a promising approach to the solution of contact-impact problems, which usually requires several hundred hours of CPU time on pipelined vector super-computers to simulate structural behaviors. The goal of this research is to advance contact-impact analysis through improved nonlinear mechanics combined with the development of new parallel algorithms to achieve better accuracy and efficiency. The underlying focus of the method is on its effectiveness and efficiency for inclusion in future finite element systems implemented in parallel computers. For scalable parallel processing, a domain decomposition algorithm and an interprocessor communication minimization are explored in the strategy. A prototype code, named GT-PARADYN, is developed and implemented to investigate the behavior of nonlinear shell structures in contact using the IBM SP2, a distributed-memory multicomputer, and MPI, a standard message passing interface. A new and improved scalable parallel contact-impact finite element method is presented for implementation on future parallel computers.
Publisher
ProQuest Dissertations & Theses
Subject
ISBN
9780591802818, 0591802813
