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Scientific Computing Group Report - Detail view

Identifier: 2009-30

Author(s): J. Guzman

Title: A unified analysis of several mixed methods for elasticity with weak stress symmetry

Page count: 12 pp.

Date: 2009-09-17

Abstract:

We give a unified error analysis of several mixed methods for linear elasticity which impose stress symmetry weakly. We consider methods where the rotations are approximated by discontinuous polynomials. The methods we consider are such that the approximate stress spaces contain standard mixed finite element spaces for the Laplace equation and also contain divergence free spaces that use bubble functions.

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