A uniform strain hexahedron and quadrilateral with orthogonal hourglass control
- 1 May 1981
- journal article
- research article
- Published by Wiley in International Journal for Numerical Methods in Engineering
- Vol. 17 (5) , 679-706
- https://doi.org/10.1002/nme.1620170504
Abstract
The treatment of zero energy modes which arise due to one‐point integration of first‐order isoparametric finite elements is addressed. A method for precisely isolating these modes for arbitrary geometry is developed. Two hourglass control schemes, viscous and elastic, are presented and examined. In addition, a convenient one‐point integration scheme which analytically integrates the element volume and uniform strain modes is presented.Keywords
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