Lamb Wave Propagation in Laminated Composite Structures

S Gopalakrishnan

Abstract


Damage detection using guided Lamb waves is an important tool in Structural health Monitoring. In this paper, we outline a method of obtaining Lamb wave modes in composite structures using two dimensional Spectral Finite Elements. Using this approach, Lamb wave dispersion curves are obtained for laminated composite structures with different fibre orientation. These propagating Lamb wave modes are pictorially captured using tone burst signal.

Keywords


Wave propagation; Lamb waves; Composites; Spectral Finite Elements; Symmetric and Antisymmetric modes

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References


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