Analysis of industrial sheet metal forming processes using an enhanced rotation-free basic shell triangle

Laurentiu Neamtu, Fernando Flores, Eugenio Oñate

Research output: Book chapterConference contributionpeer-review

Abstract

An enhanced rotation-free three node triangular shell element (termed EBST) is presented. The element formulation is based on a quadratic interpolation of the geometry in terms of the six nodes of a patch of four triangles associated to each triangular element. This allows to compute an assumed constant curvature field and an assumed linear membrane strain field which improves the in-plane behaviour of the element. A simple and economic version of the element using a single integration point is presented. The efficiency and accuracy of the EBST element using an explicit dynamic scheme are demonstrated in an example of application to a practical sheet metal stamping problem.

Original languageEnglish
Title of host publicationComputational Plasticity - Fundamentals and Applications, COMPLAS IX
Pages90-95
Number of pages6
EditionPART 1
Publication statusPublished - 2007
Externally publishedYes
Event9th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS IX - Barcelona, Spain
Duration: 5 Sept 20077 Sept 2007

Publication series

NameComputational Plasticity - Fundamentals and Applications, COMPLAS IX
NumberPART 1

Conference

Conference9th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS IX
Country/TerritorySpain
CityBarcelona
Period5/09/077/09/07

Keywords

  • Rotation-free shell triangle
  • Sheet metal forming

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