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Proceedings Paper

Lamb wave propagation in negative Poisson's ratio composites
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Paper Abstract

Lamb wave propagation is evaluated for cross-ply laminate composites exhibiting through-the-thickness negative Poisson's ratio. The laminates are mechanically modeled using the Classical Laminate Theory, while the propagation of Lamb waves is investigated using a combination of semi analytical models and Finite Element time-stepping techniques. The auxetic laminates exhibit well spaced bending, shear and symmetric fundamental modes, while featuring normal stresses for A0 mode 3 times lower than composite laminates with positive Poisson's ratio.

Paper Details

Date Published: 10 April 2008
PDF: 8 pages
Proc. SPIE 6935, Health Monitoring of Structural and Biological Systems 2008, 69350C (10 April 2008); doi: 10.1117/12.776022
Show Author Affiliations
Chrystel Remillat, Univ. of Bristol (United Kingdom)
Paul Wilcox, Univ. of Bristol (United Kingdom)
Fabrizio Scarpa, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 6935:
Health Monitoring of Structural and Biological Systems 2008
Tribikram Kundu, Editor(s)

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