An efficient decoupling algorithm for thermoelastic dynamic system of elliptic membrane shell

Abstract

In this study, we propose a novel computational framework for approximating the dynamics of the elliptic membrane shell model when it is coupled with thermal equations. The algorithm we propose here effectively addresses the coupling between the displacement and temperature fields, significantly reducing computational complexity. Spatial discretization is performed using the finite element method, while time discretization is based on the Newmark–Crank–Nicolson scheme. Numerical experiments are conducted on parts of elliptic and spherical shells, and the corresponding errors are analyzed for different values of the Newmark parameters and spatial steps for varying material parameters. Notably, we observe that the error convergence is influenced by the symmetry of the middle surface of the elliptic membrane under consideration.