Abstract
AbstractIn this paper, a Mindlin plate element is formulated based on the Hellinger–Reissner principle and the γ‐technique. The stiffness consists of a constant stress (one‐point quadrature) matrix and a stabilization matrix. The stabilization matrix is compared with those previously proposed. In addition, the element uses a projection to modify the nodal displacements so that the patch test is satisfied. The projection matrix is based on a mode decomposition. Several numerical cases are presented, and it is shown that the mode decomposition projection is necessary both for satisfaction of the patch test and convergence.
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More From: International Journal for Numerical Methods in Engineering
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