A repeating element composed of four cell struts in a pentagonal dodecahedron model is used to analyze the creep-buckling of opencell foams. The solid making up the cell struts is assumed to follow power-law creep. As a result, the theoretical expression for describing the failure time for the onset
Effect of structure on the creep of open-cell nickel foams
✍ Scribed by H. S. ZUROB; Y. Bréchet
- Book ID
- 106390992
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 622 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0022-2461
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A repeating element consisting of four straight and uniform-thickness cell struts in a pentagonal dodecahedron model is employed to analyze theoretically the creep-rupturing of open-cell foams. In the repeating element, the solid making up cell struts is assumed to follow power-law creep and the Mon
Aluminium-5 wt.% magnesium open cell foam produced by replication and tested in tension at 300, 350 or 450 °C creeps at rates between 10 À3 and 10 À8 s À1 . The behaviour of the foam matches that of the alloy from which it is made: three-power law creep with the same activation energy as for Al-Mg a