Thermoelastic stress analysis in composite cylindrical vessel with metallic liner using first-order shear deformation theory and differential quadrature method

Abstract

In this study, thermoelastic stress analysis in composite metal cylindrical vessel is investigated with the help of two theories, first-order shear deformation theory (FSDT) and layerwise theory, using differential quadrature method (DQM). Hamilton principle and FSDT are employed for derivation of the principle differential equations. DQM and Newmark’s methods are used for stress analysis of a composite metal cylindrical vessel subjected to internal dynamic pressure and thermal load achieved from experimental test. In order to more accurately estimate the thickness effect, the layerwise theory is applied to approximate the temperature field. In this solution method, DQM is used to discretize the resulted governing equations while Newmark’s method is implemented to solve the problem in the time domain. It was observed that the fast convergence rate of the DQM method and its accuracy is confirmed by comparing the results with those obtained using ABAQUS software and also with the exact solutions. Furthermore, it was achieved significantly less computational efforts of the proposed approaches with respect to the finite element method.