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- Grenestedt, Joachim L., et al.
(författare)
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Influence of cell wall thickness variations on elastic stiffness of closed-cell cellular solids
- 2000
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Ingår i: International Journal of Mechanical Sciences. - 0020-7403 .- 1879-2162. ; 42:7, s. 1327-1338
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Tidskriftsartikel (refereegranskat)abstract
- The stiffness of closed-cell low-density cellular solids, or solid foams, is affected by "imperfections" such as non-uniform cell shape and size, wavy distortions of cell walls, variations in cell wall thickness, etc. The present paper focuses on the influence of non-uniform cell wall thickness on stiffness. Calculations are performed on one model with different degrees of thickness variations. The model used is the flat-faced Kelvin structure, which consists of 14-sided polyhedra in a bcc arrangement. The results indicate that the stiffness of closed-cell cellular solids is not very sensitive to thickness variations. (C) 2000 Elsevier Science Ltd. All rights reserved.
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