Analysis of Lamb wave dispersion curve sensitivity to material elastic constants in composites

Alberto Gallina; Lukasz Pieczonka; Lukasz Ambrozinski; Pawel Packo; Piotr Nazarko; Tadeusz Uhl; Zenon Waszczyszyn

doi:10.1117/12.2084350

23 March 2015 Analysis of Lamb wave dispersion curve sensitivity to material elastic constants in composites

Alberto Gallina, Lukasz Pieczonka, Lukasz Ambrozinski, Pawel Packo, Piotr Nazarko, Tadeusz Uhl, Zenon Waszczyszyn

Proceedings Volume 9438, Health Monitoring of Structural and Biological Systems 2015; 94380O (2015) https://doi.org/10.1117/12.2084350
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

The paper deals with the problem of Lamb waves dispersion curves sensitivity to the change of elastic constants in composite materials. The framework of the present work is a more general problem of material constants identification in thin plates made of composite materials. The approach is based on the analysis of guided waves propagation and the related dispersion curves to find the underlying material elastic constants. In present work a numerical study is performed to identify measurement directions and wave propagation modes that are most sensitive to the change of the particular elastic constants. This approach will allow to optimize the material constants identification procedure and experimental setup by specifying the preferred measurement directions and wave propagation modes. The approach can be used within the Structural Health Monitoring framework to monitor material degradation of plate-like structures made of composite materials.

Citation Download Citation

Alberto Gallina, Lukasz Pieczonka, Lukasz Ambrozinski, Pawel Packo, Piotr Nazarko, Tadeusz Uhl, and Zenon Waszczyszyn "Analysis of Lamb wave dispersion curve sensitivity to material elastic constants in composites", Proc. SPIE 9438, Health Monitoring of Structural and Biological Systems 2015, 94380O (23 March 2015); https://doi.org/10.1117/12.2084350

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