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
Multiaxial creep of low density open-cell foams
β Scribed by Z.G. Fan; C.Q. Chen; T.J. Lu
- Book ID
- 113810024
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- English
- Weight
- 691 KB
- Volume
- 540
- Category
- Article
- ISSN
- 0921-5093
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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 Β°C creeps at rates between 10 Γ3 and 10 Γ8 s Γ1 . 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