Mechanical Behaviors of Closed-Cell Aluminum Foams under Quasi-Static Compression-Shear Loads

LI Xueyan; LI Zhibin; ZHANG Duo

doi:10.11858/gywlxb.20170655

Volume 32 Issue 3

Apr 2018

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Chinese Journal of High Pressure Physics > 2018 > 32(3): 034101.

LI Xueyan, LI Zhibin, ZHANG Duo. Mechanical Behaviors of Closed-Cell Aluminum Foams under Quasi-Static Compression-Shear Loads[J]. Chinese Journal of High Pressure Physics, 2018, 32(3): 034101. doi: 10.11858/gywlxb.20170655

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LI Xueyan, LI Zhibin, ZHANG Duo. Mechanical Behaviors of Closed-Cell Aluminum Foams under Quasi-Static Compression-Shear Loads[J]. Chinese Journal of High Pressure Physics, 2018, 32(3): 034101. doi: 10.11858/gywlxb.20170655

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Mechanical Behaviors of Closed-Cell Aluminum Foams under Quasi-Static Compression-Shear Loads

doi: 10.11858/gywlxb.20170655

College of Science, National University of Defense Technology, Changsha 410073, China

Received Date: 09 Oct 2017
Rev Recd Date: 08 Nov 2017

Abstract

Abstract

In the present work, we conducted the quasi-static compression-shear experiments on the closed-cell aluminum foams using an improved testing machine and installing beveled bars and a column sleeve.By changing the angle of the inclined beveled bars we obtained the mechanical properties of the aluminum foams in different compression-shear loading paths, and then figured out the aluminum foam's experiment yield surface from the force analysis of the specimen used.At the same time, we simulated the compression-shear process of the closed-cell aluminum foams using the finite element software LS-DYNA.The simulated yield surface is in good agreement with the experimental yield surface.The results show that, for the aluminum foams of the same density and in a given range of the cell size, the yield strength of the closed-cell aluminum foams increases with the increase of the cell size, and so does its load capacity.
- compression-shear loading,
- closed-cell aluminum foams,
- tetrakaidecahedron model,
- yield surface,
- cell size

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References(15)

References

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Mechanical Behaviors of Closed-Cell Aluminum Foams under Quasi-Static Compression-Shear Loads

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Mechanical Behaviors of Closed-Cell Aluminum Foams under Quasi-Static Compression-Shear Loads

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