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Fast and accurate 4-node quadrilateral

På svenska

Author

Summary, in English

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.

Department/s

Publishing year

2004

Language

English

Pages

1809-1834

Publication/Series

International Journal for Numerical Methods in Engineering

Volume

61

Issue

11

Document type

Journal article

Publisher

John Wiley & Sons Inc.

Topic

  • Mechanical Engineering

Keywords

  • Hu-Washizu principle
  • one-point integration
  • hourglass stabilization
  • quadrilateral

Status

Published

ISBN/ISSN/Other

  • ISSN: 1097-0207