Two generalized conforming quadrilateral Mindlin-Reissner plate elements based on the displacement function

摘要

This work presents two 4-node, 12-DOF quadrilateral displacement-based Unite elements for analysis of the Mindlin-Reissner plate. Derived from the fundamental analytical solutions of the displacement function F, the deflection and rotation fields of the proposed elements satisfy a priori all related governing equations. The unknown coefficients are determined through the generalized conforming element method, a relaxed and rational conforming approach. The resulting elements perform like nonconforming elements on a coarse mesh, and with mesh refinement they converge as conforming elements. Numerical benchmarks demonstrate that the new elements are insensitive to mesh distortion and free of shear locking, and can provide satisfactory results for most cases. (C) 2015 Elsevier B.V. All rights reserved.