Abstract
Functionally graded materials (FGM) have recently received extensive attention for their exceptional mechanical properties. This paper presents the nonlinear interaction of the guided waves with micro-crack in an FGM plate. For this purpose, a 2D finite element model of an FGM plate composed of ceramic and metal mixture is developed. The effective gradient of the properties is expressed by a continuous polynomial law as a function of the thickness. The simulation results showed that the generation of higher harmonics provides a sensitive means for micro-crack detection in FGM plates. Moreover, the amplitudes of the harmonics increase with the increase in micro-crack length.
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Aslam, M., Lee, J. (2023). Numerical Investigation of Nonlinear Guided Wave Propagation in a Functionally Graded Material. In: Singh, S.B., Gopalarathnam, M., Kodur, V.K.R., Matsagar, V.A. (eds) Fiber Reinforced Polymeric Materials and Sustainable Structures. Composites Science and Technology . Springer, Singapore. https://doi.org/10.1007/978-981-19-8979-7_15
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DOI: https://doi.org/10.1007/978-981-19-8979-7_15
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