Open Access

ARTICLE

In-plane Crushing Analysis of Cellular Materials Using Vector Form Intrinsic Finite Element

T.Y. Wu¹, W.C. Tsai², J.J. Lee²

1 Engineering Technology & Facilities Operation, Institute of Nuclear Energy Research ROC AEC,Taiwan R.O.C.
2 Department of Mechanical Engineering, National Taiwan University, Taiwan R.O.C.

Computers, Materials & Continua 2010, 17(3), 175-214. https://doi.org/10.3970/cmc.2010.017.175

Abstract

The crushing of cellular materials is a highly nonlinear problem, for which geometrical, material, and contact/impact must be treated in one analysis. In order to develop a framework able to solve it efficiently and accurately, in this paper procedures for in-plane crushing analysis of cellular materials using vector form intrinsic finite element (VFIFE) is performed. A beam element of VFIFE is employed to handle large rotation and large deflection in the cell walls. An elastic-plastic material model with mixed hardening rule is adopted to account for material nonlinearity. In addition, an efficient contact/impact algorithm is designed to treat the complex contact/impact encountered in crushed cellular materials. Numerical results performed reveals that the procedures proposed in this paper are sound and reliable to simulate crushing of diverse cellular materials.

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Keywords

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