An element-free Galerkin-finite element coupling method for elasto-plastic contact problems

Tianxiang Liu*, Geng Liu, Q. Jane Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


The element-free Galerkin-finite element (EFG-FE) coupling method, combined with the linear mathematical programming technique, is utilized to solve two-dimensional elasto-plastic contact problems. Two discretized models for an elastic cylinder contacting with a rigid plane are used to investigate the boundary effects in a contact problem when using the EFG-FE coupling method under symmetric conditions. The influences of the number of Gauss integration points and the size supporting the weight function in the meshless region on the contact pressure and stress distributions are studied and discussed by comparing the numerical results with the theoretical ones. Furthermore, the elasto-plastic contact problems of a smooth cylinder with a plane and a rough surface with a plane are analyzed by means of the EFG-FE method and different elasto-plasticity models.

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalJournal of Tribology
Issue number1
StatePublished - Jan 2006

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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