Theoretical and experimental studies of Lamb wave propagation in attenuative composites

Mircea Calomfirescu; Axel S. Herrmann

doi:10.1117/12.736702

10 April 2007 Theoretical and experimental studies of Lamb wave propagation in attenuative composites

Mircea Calomfirescu, Axel S. Herrmann

Proceedings Volume 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007; 652929 (2007) https://doi.org/10.1117/12.736702
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

This paper presents a theoretical model for anisotropic wave attenuation in composites. The model has been implemented in a software called FIBREWAVE in order to predict dispersion and attenuation of S₀, A₀ and SH₀ Lamb wave modes. The required input data are the complex stiffness matrix coefficients of the unidirectional plies of the laminate, which have been measured by a laser interferometry method. Complex stiffness data for an unidirectional CFRP laminates are moreover presented. Satisfactory agreement has been observed between predicted and experimental group velocities and wave attenuations.

Citation Download Citation

Mircea Calomfirescu and Axel S. Herrmann "Theoretical and experimental studies of Lamb wave propagation in attenuative composites", Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 652929 (10 April 2007); https://doi.org/10.1117/12.736702

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