Abstract
This investigation is concerned with the development of a multi-unit-cell which enables the modeling of the mechanical response of metallic foams subject to oblique loadings. The geometry of the cell was derived from careful observation of the foam morphology. The new closed unit cell is formed by the use of ellipsoids which are interconnected through a truncated pyramid. In this approach, we represent the morphology of closed-cell aluminum foams through the use of corresponding average uniform geometrical and mechanical properties. Extensive multi-unit-cell finite element analyses were conducted to examine the effect of key geometric parameters on the collapse load, normalized crush force versus deformation characteristics as well as the corresponding energy absorption. The numerical simulations were compared with crush test experiments involving different oblique loads. In spite of showing an initial stiff response, which is typical in idealized numerical models, the results revealed that the developed multi-unit-cell is able to simulate the crush behavior of closed-cell foams.
Similar content being viewed by others
References
C. Chen N.A. Fleck (2002) ArticleTitleSize effects in the constrained deformation of metallic foams Journal of the Mechanics and Physics of Solids 60 955–977
W. Chen T. Wierzbicki (2001) ArticleTitleRelative merits of single-cell, multi-cell and foam-filled thin-walled structures in energy absorption Thin-Walled Structures 39 287–306 Occurrence Handle10.1016/S0263-8231(01)00006-4 Occurrence Handle1:CAS:528:DC%2BD38XktFyrug%3D%3D
Gibson, L.J. and Ashby, M.F. (1997). Cellular Solids: Structure and Properties, Cambridge University Press.
Hallquist, J.O. (1999). LS-Dyna3D User’s Manual, Version: LS-DYNA 950, Livermore Software Technology Corporation.
O.S. Hopperstad M. Langseth H. Ilstad A.G. Hanssen (2002) ArticleTitleValidation of constitutive models applicable to aluminium foams International Journal of Mechanical Sciences 44 359–406
M. Langseth O.S. Hopperstad T. Berstad (1999) ArticleTitleCrashworthiness of aluminium extrusions: validation of numerical simulation, effect of mass ratio and impact velocity International Journal of Impact Engineering 22 829–854 Occurrence Handle10.1016/S0734-743X(98)00070-0
M. Langseth O.S. Hopperstad A.G. Hanssen (1998) ArticleTitleCrash behaviour of thin-walled aluminium members Thin-Walled Structures 32 127–150 Occurrence Handle10.1016/S0263-8231(98)00030-5
S.A. Meguid S.S. Cheon N. El-Abbasi (2002a) ArticleTitleFE modelling of deformation localization in metallic foams Finite Elements in Analysis and Design 38 631–643 Occurrence Handle10.1016/S0168-874X(01)00096-8
S.A. Meguid J.C. Stranart J. Heyerman (2002b) ArticleTitleFE modelling of ultralight foam-filled structures International Journal of Computer Applications in Technology 15 211–217
E. Miller (2000) ArticleTitleA continuum plasticity model for the constitutive and indentation behaviour of foamed metals International Journal of Mechanical Sciences 42 729–754 Occurrence Handle10.1016/S0020-7403(99)00021-1
S. Santosa T. Wierzbicki (1998) ArticleTitleOn the modeling of crush behavior of a closed-cell aluminum foam structure Journal of Mechanics of Physics of Solids 46 645–669 Occurrence Handle1:CAS:528:DyaK1cXjtFSqtbc%3D
A.E. Simone L.J. Gibson (1998) ArticleTitleAluminum foam produced by liquid-state process Acta Materialia 46 3109–3123 Occurrence Handle1:CAS:528:DyaK1cXjslahurY%3D
Y. Sugimura J. Meyer M.Y. He H. Bart-Smith J. Grenstedt A.G. Evans (1997) ArticleTitleOn the mechanical performance of closed cell AL alloy foams Acta Materialia 45 5245–5259 Occurrence Handle10.1016/S1359-6454(97)00148-1 Occurrence Handle1:CAS:528:DyaK2sXns12ru74%3D
J. Zhang N. Kikuchi V. Li A. Yee G. Nusholtz (1998) ArticleTitleConstitutive modeling of polymeric foam material subjected to dynamic crash loading International Journal of Impact Engineering 21 369–386
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Czekanski, A., Elbestawi, M.A. & Meguid, S.A. On the FE Modeling of Closed-cell Aluminum Foam. Int J Mech Mater Des 2, 23–34 (2005). https://doi.org/10.1007/s10999-005-0518-7
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10999-005-0518-7