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arXiv · 1803.00771

Modified midpoint integration rule for the trilinear element in large deformation elasticity

Mirza Cenanovic·Peter Hansbo·David Samvin
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Abstract

In this paper we suggest two modified one-point Gauss integration rules for the Q1 bi- or trilinear element. The modifications both stabilize the hourglass modes of the one-point rule, and one of them is accurate also on severely distorted elements. We investigate the performance of the integration rules for the hexahedron element, and combine standard one-point integration of the volumetric terms with the modified rules for the isochoric terms to handle near incompressible situations.

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Mirza Cenanovic, Peter Hansbo, David Samvin. 2018-03-02. Modified midpoint integration rule for the trilinear element in large deformation elasticity. https://arxiv.org/abs/1803.00771

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