LAUSR

Abstract This study was aimed to computationally investigate the thermal load combining the mechanical load effect on dynamic characteristics of intelligent composite structures. For this purpose, the cell-based smoothed finite element method (CS-FEM) was applied to the multi-physic coupling problem, and the coupled multi-physic CS-FEM (CPCS-FEM) integrating the magneto-electro-thermo-elastic (METE) coupling effect was put forward. Compared with standard FEM, this method with higher accuracy, lower mesh restriction and much less calculation for stochastic issues was more capable in handling severe mesh distortion and deformation. The convergence, accuracy and efficiency of CPCS-FEM were validated with three numerical cases. With CPCS-FEM integrating the modified Newmark scheme, the thermal effects on generalized displacement (x- and z-direction displacement components, electric and magnetic potentials) of magneto-electro-elastic sensors were explored. This study presents an effective approach to model the complicated multi-physic problem, and the simulation findings contribute to the design of intelligent structures in service under thermal conditions.