An edge-based smoothed finite element for buckling analysis of functionally graded material variable-thickness plates

The paper aims to extend the ES-MITC3 element, which is an integration of edge-based smoothed finite element method (ES-FEM) with mixed interpolation tensorial components technique for three-node triangular (MITC3 element), buckling analysis FGM variable-thickness plates subjected mechanical loads. proposed performed eliminate shear locking phenomenon and enhance accuracy existing MITC3 element. In stiffness matrices are obtained by using strain smoothing over domains formed two adjacent elements sharing same edge. numerical results demonstrated that reliable more accurate than some other published solutions in literature. influences geometric parameters, material properties on stability examined detail.