Modelling and Structural analysis of elastically supported Sandwich Plate Using Meshless Technique

Abstract

This paper deals with radial basic function (RBF) based meshfree technique is used for the displacement  and stresses analysis of simply supported rectangular sandwich plate.

The displacement field with five variables algebraic higher order shear deformation theory (AHSDT) is used. A Governing differential equations (GDEs) of the sandwich plate is developed using energy principle. MQ-RBF based Mesh less method is implemented for discretizng the GDE. A MATLAB (2015a) code is developed to obtain the desired results The present results are compared with the available 3D elasticity solutions and the other results available in the literature. Based on the meshless approach, the analyses for sandwich plate is carried out, and the effects of the stiffness ratio ‘R’, the core thickness to plate thickness ratio, and four types of load   on the deflection and stresses are investigated. Some new results for sandwich plate under concentrated uniformly distributed patch load (CUDP) considered which may serve as a benchmark for future investigations.