The Stress-Strain Behaviors of High Density Aluminum Foam under Monotonic and Cyclic Loading

Yu Jie Liu; Bin Qiang

doi:10.4028/www.scientific.net/AMM.464.69

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 464The Stress-Strain Behaviors of High Density...

The Stress-Strain Behaviors of High Density Aluminum Foam under Monotonic and Cyclic Loading

Abstract:

The stress-strain behaviors were investigated by monotonic and cyclic stressing tests for high density aluminum foam at room temperature. The cyclic accumulations of deformation for the material were measured in varied loading levels. The effects of mean stress and stress ratio on the ratcheting strain were discussed. The experimental results show that tension response is different from the compressive response. There is obvious cyclic accumulations of deformation (i.e., ratcheting effect) under compression-compression cyclic loading even if the holistic stress-strain response is linear. And the ratcheting of aluminum foam greatly depends on mean stress and stress ratio in asymmetric stress cycling. The experimental rules and data are significant for constitutive description and numerical simulation of aluminum foam.

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Periodical:

Applied Mechanics and Materials (Volume 464)

Pages:

69-72

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.464.69

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Online since:

November 2013

Authors:

Yu Jie Liu*, Bin Qiang

Keywords:

Aluminum Foam, Cyclic Behavior, Monotonic Property, Ratchetting Effect

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