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Floquet analysis of guided waves propagating in periodically layered composites

✍ Scribed by A. Safaeinili; D.E. Chimenti; B.A. Auld; S.K. Datta

Publisher
Elsevier Science
Year
1995
Weight
390 KB
Volume
5
Category
Article
ISSN
0961-9526

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✦ Synopsis

Abstraet--ln this paper, we present an analysis and numerical calculations on the propagation of elastic guided waves in composite plates composed of periodic layers. The guided waves are constructed by superposing obliquely traveling Floquet partial plane wave solutions in such a way that they satisfy a standing wave resonance condition through the thickness of the periodic composite. We demonstrate that transverse resonance can be established only in the Floquet passbands of the periodic composite. The predicted phenomena observed is consistent with our previous experimental observations in the Lamb wave case for an aluminum/aramid-epoxy composite (

πŸ“œ SIMILAR VOLUMES

ATTENUATION OF STRESS WAVE PROPAGATION I
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✍ C. HAN; C.T. SUN πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 370 KB

An exact viscoelastic analogous relation between a periodically layered elastic medium and a homogeneous viscoelastic medium was introduced, based upon which a short-time relaxation function was developed. Both the wave front decay and the spatial attenuation of stress waves in a periodically layere