Abstract
Quasi-static and compressive fatigue tests on the closed cell Al-Si-Ca alloy foam specimens with three different aspect ratios were performed. It turned out that the onset of cyclic shortening of foam with a lower aspect ratio took place earlier and the fatigue strength was lower compared with the specimen with a higher aspect ratio, although all the dimensions of specimen satisfied the seven times the cell size criterion, while the quasi-static stress-strain curves were almost same having same Young’s modulus, yield stress and plateau stress. Therefore, the seven times the cell size criterion for the quasi-static compression behavior was not applicable to the fatigue analysis of Al-Si-Ca alloy foam.
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Project supported by Chungnam Automotive Technology Education Center (NURI) and BK 21.
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Kim, A., Kim, I. Effect of Specimen Aspect Ratio on Fatigue Life of Closed Cell Al-Si-Ca Alloy Foam. Acta Mech. Solida Sin. 21, 354–358 (2008). https://doi.org/10.1007/s10338-008-0842-1
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DOI: https://doi.org/10.1007/s10338-008-0842-1