Journal article
Influence of cell wall thickness variations on elastic stiffness of closed-cell cellular solids

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Publication Details
Author list: Grenestedt, Joachim L.
Publication year: 2000
Start page: 1327
End page: 1338
Number of pages: 12
ISSN: 0020-7403
View additional information: View in Web of Science™


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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