Abstract
Based on LS-DYNA, this paper compares four modeling methods for sandwich plates, e.g. the layered shell element, the solid and shell mixing element, the shared-node shell element and the thick shell element. Four modeling methods are used to simulate sandwich plates with different thickness-to-span ratios and different mesh sizes. The comparative analysis of the relationships between the mesh size, the CPU time and the convergence rate of the accuracy of four methods shows that the layered shell element and the shared-node shell element can accurately simulate sandwich plates with high efficiency.
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