An approach is developed to improve the stress and displacements of isotropic plates via the Saint-Venant’s principle. The principle states that the stress resultants should always be same regardless of the plate theories used. We start from the cla...
An approach is developed to improve the stress and displacements of isotropic plates via the Saint-Venant’s principle. The principle states that the stress resultants should always be same regardless of the plate theories used. We start from the classical Kirchhoff-love model to initiate the stress estimation, and then, the displacements are improved via the three-dimensional equilibrium equations in which the additional unknown displacements so-called perturbations are introduced. These perturbed displacements are calculated by applying the equivalence of stress resultants before and after post-processing (or Saint Venant's principle). The results obtained are compared to those of elasticity approach for isotropic rectangular plates to assess the validity of the proposed approach.