✦ LIBER ✦

A mechanical model for the computation of phenolic foams in compression

✍ Scribed by C. Gontier; A. Bouchou; C. Vinot

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 134 KB
Volume: 43
Category: Article
ISSN: 0020-7403
DOI: 10.1016/s0020-7403(01)00019-4

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✦ Synopsis

In the ÿeld of packaging and cushioning applications, phenolic foams bring a suitable solution because of various qualities: incombustibility, cost, and mechanical behaviour in compression. The present paper is devoted to the development of a mechanical model for those foams, with a view to implementing it into a computer code. The yield criterion is derived from the famous Cam-Clay model provided with a standard ow rule, but the speciÿcity of the model lies in the densiÿcation law. The densiÿcation equation is deÿned in an asymptotic form, and is shown to represent accurately the experimental tests in compression. The method of identiÿcation is applied to foam samples in a wide range of densities, thus providing a complete characterisation of this family of materials.

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