Abstract
Computer simulation of wave processes in composite structures is a challenging task due to complicate waveguide properties induced by their anisotropy and lamination. In the present contribution, recent advances in analytically based guided wave (GW) simulation within 3D anisotropic elasticity are present. The wave fields generated in anisotropic laminate structures by surface or buried sources are explicitly expressed via integral and asymptotic expressions in terms of Green’s matrix of the structure considered and the source load. On this basis, a set of low-cost computer models for a reliable quantitative near- and far-field analysis has been developed and experimentally validated. Their abilities are illustrated with several examples: (i) the evaluation of structural frequency response and radiation pattern diagrams for GWs generated by piezoelectric wafer active sensors (PWAS) ; (ii) the reconstruction of effective elastic moduli of fiber-reinforced composite plates based on laser vibrometer measurements; (iii) PWAS frequency tuning with accounting for the wave energy supplied by the source and the radiation directivity caused by the plate’s anisotropy.
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Acknowledgments
This work is partly funded by the Russian Foundation for Basic Research (project No. 13-01-96516) and the Ministry of Education and Science of the Russian Federation (agreements No. 1.189.2014 K). The authors highly acknowledge the support of T. Fedorkova and S. Föll (Helmut Schmidt University, Hamburg) in laser vibrometry experiments.
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Glushkov, E.V., Glushkova, N.V., Eremin, A.A., Evdokimov, A.A., Lammering, R. (2016). Ultrasonic Guided Wave Characterization and Inspection of Laminate Fiber-Reinforced Composite Plates. In: Parinov, I., Chang, SH., Topolov, V. (eds) Advanced Materials. Springer Proceedings in Physics, vol 175. Springer, Cham. https://doi.org/10.1007/978-3-319-26324-3_31
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DOI: https://doi.org/10.1007/978-3-319-26324-3_31
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