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|Title:||Effects of interfacial elasticity on the reflection and refraction of SH waves||Authors:||Long, Jianmin
|Keywords:||Engineering::Mechanical engineering||Issue Date:||2022||Source:||Long, J. & Fan, H. (2022). Effects of interfacial elasticity on the reflection and refraction of SH waves. Acta Mechanica, 233(10), 4179-4191. https://dx.doi.org/10.1007/s00707-022-03336-x||Journal:||Acta Mechanica||Abstract:||The stiffnesses and microstructures of interfaces may have significant influence on the propagation of elastic waves. In this paper, we investigate the reflection and refraction of SH waves at a non-ideal interface between two elastic half-spaces. First, we use the surface elasticity theory (Gurtin and Murdoch in Arch. Ration. Mech. Anal. 57: 291–323, 1975) to describe the mechanical behaviour of the interface. We derive the reflection and transmission coefficients, as well as the phase angles of the reflected and transmitted waves. Then we treat the non-ideal interface between two elastic bodies as a thin membrane with microstructures. By employing the second-order strain-gradient model (Aifantis in Int. J. Eng. Sci. 30: 1279–1299, 1992) to describe the mechanical behaviour of the thin membrane, we establish the strain-gradient thin membrane model for the present problem. Finally, by selecting combinations of non-dimensional parameters, we demonstrate the effects of interfacial material constants on the reflection and refraction of SH waves.||URI:||https://hdl.handle.net/10356/163468||ISSN:||0001-5970||DOI:||10.1007/s00707-022-03336-x||Rights:||© 2022 The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MAE Journal Articles|
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