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| Sandwich beams with high porosity and specific strength Al alloy foam core |
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| 东南大学 |
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Cite this article:
. Sandwich beams with high porosity and specific strength Al alloy foam core. Chin J Mater Res, 2004, 18(5): 485-493.
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Abstract The compression and shear capacities of Al alloy foam and Al foam were studied.
The failure modes and peak loads of sandwich beams with this Al alloy foam core
were measured which was in good agreement with theoretic values. A design method
is given which shows that rigidity is used as design controlling index for a low
given load while relative peak load is used as controlling index for a high load.
Comparison is made between the sandwich beams with the two different cores. It is
concluded that sandwiches with Al alloy foam core have a rigidity 0$\sim$0.185
times higher than sandwiches with Al foam core, and a peak load 0.57$\sim$1.8 times
higher under core--shear mode and 0.9$\sim$2.2 times higher under indentation than
sandwiches with Al foam core.
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Received: 05 November 2004
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