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Comparison of Bicubic Rectangular and Full Cubic Triangular Mindlin Plate Finite Elements

Two finite elements for the MIndlin plate theory are compared in a numerical experiment. The results for a 16 node rectangular Lagrangian element with incomplete bicubic polynomial expansion are compared with the results for a 10 node full cubic traingular element by using the same nodal mesh. The comparison is based on two exact solutions which were earlier proposed by the same authors. Results for the rectangular element are slightly better than the results for the triangular element.

Mindlin plate theory; bicubic Lagrangian element; full cubic triangular element; numerical experiment

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