Acoustic refraction of off-axis shear horizontal waves in slightly anisotropic plates |
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| Affiliation: | 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, PR China;2. Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University, Glasgow G4 0BA, Scotland, United Kingdom;3. Civil Engineering Design, Department of Civil and Environmental Engineering, Brunel University London, UB8 3PH, United Kingdom;1. Technical University of Denmark, Brovej, Building 118, 2800 Kgs. Lyngby, Denmark;2. University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark;1. Department of Civil and Construction Engineering, National Taiwan University of Science & Technology, Taipei, Taiwan;2. Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung, Taiwan |
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| Abstract: | Several techniques have recently been proposed to perform acoustic birefringence measurements, using off-axis SH-waves, in order to determine stresses in slightly anisotropic materials. These techniques tacitly assume that refraction effects, due to inhomogeneous stress distributions and/or local variations in material properties, are negligible. In this paper we investigate the conditions under which this assumption is valid. |
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