Comparative Analysis of Different Modeling Methods for Sandwich Plates Based on LS-DYNA

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.

• Periodical: Applied Mechanics and Materials (Volumes 578-579)
• Pages: 540-545
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.578-579.540
• Online since: July 2014
• Authors: Zheng Zhu, Jun Jie Wang*
• Keywords: Layered Shell, LS-DYNA, Sandwich Plate, Shared-Node Shell, Solid and Shell, Thick Shell

References

[1] ZHOU Hong, ZHANG Yanchang, YUE Yalin et al. Numerical simulation analysis technology for sandwich plate system crashworthiness, Computer Aided Engineering, (2013).

[2] The Solid Shell Element and Its Application in the Dynamic Explicit Finite Element Method.

[3] John O. Hallquist, LS-DYNA THEORY MANUAL, (2006).