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A Parametric Study for Four Node Bilinear EAS Shell Elements

Published online by Cambridge University Press:  28 September 2011

Cengiz Polat
Cengiz Polat*
Affiliation:
Firat University, Faculty of Engineering, Department of Civil Engineering, 23279, Elazig, Turkey
*
* Assistant Professor, corresponding author
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Abstract

A locking free formulation of 4-node bilinear shell element and its application to shell structures is demonstrated. The Enhanced Assumed Strain (EAS) method based on three-field variational principle of Hu-Washizu is used in the formulation. Transverse shear locking and membrane locking are circumvented by means of enhancing the displacement-dependent strain field with extra assumed strain field. Several benchmark shell problems are analyzed.

Keywords

Shell finite elementEAS methodShear and membrane locking
Type
Research Article
Information
Journal of Mechanics , Volume 26 , Issue 4 , December 2010 , pp. 431 - 438
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2010

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