Numerical Analysis of Static Behavior in a Three-point Bending Test of Aluminum Foam Sandwich Beams using the Extended Finite Element Method

Paper #:
  • 2009-01-3210

Published:
  • 2009-11-10
Citation:
Hahn, Y. and Cheon, S., "Numerical Analysis of Static Behavior in a Three-point Bending Test of Aluminum Foam Sandwich Beams using the Extended Finite Element Method," SAE Int. J. Aerosp. 2(1):176-180, 2010, https://doi.org/10.4271/2009-01-3210.
Pages:
5
Abstract:
In this paper, the numerical analysis of a three-point bending test of an aluminum foam sandwich structure is performed with the new extended finite element feature supported by Abaqus 6.9. The sandwich beam consists of two aluminum skins and one aluminum foam core. Three different sets of model dimensions are selected for comparison with the reference results (J. Yu, E. Wang, J. Li, Z. Zheng, “Static and low-velocity impact behavior of sandwich beams with closed-cell aluminum-foam core in three-point bending”, International Journal of Impact Engineering, 35, 2008, pp 885-894). Failure modes in this paper can be categorized into three parts: face yield (FY), indentation (IN), and core shear (CS). Face yield occurs on the surface of the core when the thickness of the skin is small. Indentation and core shear occur if the thickness of the skin is relatively large. Failure modes in the numerical simulation were found to be in good agreement with the test results obtained from the reference paper.
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