Fast and accurate 4-node quadrilateral

Research output: Contribution to journalArticle

Abstract

An accurate and variationally consistent 4-node quadrilateral element is introduced where high coarse mesh accuracy and low mesh distortion sensitivity are characteristic qualities, even when incompressibility is approached for plane strain. One-point quadrature integration procedure is adopted and a new improved stabilization technique is developed. Orthogonality conditions are utilized so that the patch test is satisfied for arbitrary quadrilaterals. Several numerical examples including a convergence rate study are presented which confirm the excellent performance of this element. Copyright (C) 2004 John Wiley Sons, Ltd.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Mechanical Engineering

Keywords

  • Hu-Washizu principle, one-point integration, hourglass stabilization, quadrilateral
Original languageEnglish
Pages (from-to)1809-1834
JournalInternational Journal for Numerical Methods in Engineering
Volume61
Issue number11
Publication statusPublished - 2004
Publication categoryResearch
Peer-reviewedYes