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Indexed by:期刊论文

Date of Publication:2005-12-01

Journal:COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING

Included Journals:Scopus、SCIE、EI

Volume:194

Issue:50-52

Page Number:5139-5158

ISSN No.:0045-7825

Key Words:3D frictional contact problem; linear complernentarity problems; aggregate function; interior point algorithm; smoothing algorithm

Abstract:Three dimensional frictional contact is formulated as linear complementarity problem (LCP) by using the parametric variational principle and quadratic programming method. Two aggregate-function-based algorithms, called respectively as self-adjusting interior point algorithm and aggregate function smoothing algorithm, are proposed for the solution of the LCP derived from the contact problems. A nonlinear finite element code is developed for numerical analysis of 3D multi-body contact problems. Four numerical examples are computed to demonstrate the applicability and computational efficiency of the methods proposed. (c) 2005 Elsevier B.V. All rights reserved.