Elastic-plastic analysis of spot-welded thin-walled structures

Miroslav Živković, Radovan Slavković, Milos Kojic, Nenad Grujović, Marina Vuković

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Spot welded thin wall structures are widely used in carrying structure of vehicles. Presented finite element approach combines modeling of thin structural elements by shell elements, spot welded joints by beam (welded) elements and contact conditions between welded shits by gap elements. Improved Bathe-Dvorkin shell element with incompatible modes is used in combination with von Mises material model with mixed hardening assumption and the Ramberg-Osgood relation (incompressible plastic flow). The implicit stress integration procedure, according to the governing parameter method (GPM), is used. Gap elements are used to prevent penetration and overlapping of modeled surfaces. In this paper we analyze influence of modeling real contact conditions during process of girder deformation. Comparison to case when contact conditions are neglected is given. Presented approach is illustrated with example that demonstrate usability and efficiency.

Original languageEnglish (US)
Title of host publicationComputational Plasticity
Subtitle of host publicationFundamentals and Applications - Proceedings of the 8th International Conference on Computational Plasticity, COMPLAS VIII
PublisherInternational Center for Numerical Methods in Engineering
Pages1043-1046
Number of pages4
EditionPART 2
ISBN (Print)849599979X, 9788495999795
StatePublished - Jan 1 2005
Event8th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS VIII - Barcelona, Spain
Duration: Sep 5 2005Sep 7 2005

Other

Other8th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS VIII
CountrySpain
CityBarcelona
Period9/5/059/7/05

Keywords

  • Elasto-plastic deformation
  • Gap
  • Shell
  • Spot welding

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Theoretical Computer Science

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