Multilayer Composite Materials with Non-Usual Poisson's Ratios

Abstract:

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Most of usual materials exhibit Poisson's ratio comprised between 0 and 0.5. But, for some kind of cellular materials, or for some stacking sequences of unidirectional plies, a composite material can exhibit negative or greater than 0.5 Poisson's ratios. In this paper, a study of different stacking sequences such as [±β/±θ]s plies made from highly anisotropic fibre pre-preg is presented. A special computer programme has been developed for this purpose. Eighteen stacking sequences, including the [±θ] ones, have been computed. The results show that at least one of Poisson's ratios varies between -0.8 to +0.4. Such kind of materials may find applications for particular cases, as their strength is significantly increased by this phenomenon.

Info:

Periodical:

Edited by:

Dragan P. Uskoković, Slobodan K. Milonjić and Dejan I. Raković

Pages:

545-552

DOI:

10.4028/www.scientific.net/MSF.555.545

Citation:

E.H. Harkati et al., "Multilayer Composite Materials with Non-Usual Poisson's Ratios", Materials Science Forum, Vol. 555, pp. 545-552, 2007

Online since:

September 2007

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$35.00

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