Abstract
The dynamic compressive behavior of an open-cell commercially pure aluminum foam was experimentally investigated with a split Hopkinson bar (SHPB) and numerically simulated using the finite element (FE) method. It is found that the flow stress increases with increasing strain rate, demonstrating the existence of strain rate dependence in the present aluminum foam. This dependence is believed to originate from the polygonal pore architecture, the relatively high density, the intrinsic property of aluminum, as well as the friction force between the contacted cell walls.
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Han, F., Cheng, H., Wang, Q. et al. The strain rate effect of an open cell aluminum foam. Metall Mater Trans A 36, 645–650 (2005). https://doi.org/10.1007/s11661-005-0180-6
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DOI: https://doi.org/10.1007/s11661-005-0180-6