Journal
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume 135, Issue 1, Pages 148-154Publisher
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.4829534
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Funding
- Russian Foundation for Basic Research (RFBR) [12-01-33011, 13-01-96516]
- German-Russian Interdisciplinary Science Center (G-RISC) [M-2013a-4]
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An explicit expression for the group velocity of wave packets, propagating in a laminate anisotropic composite plate in prescribed directions, is proposed. It is based on the cylindrical guided wave asymptotics derived from the path integral representation for wave fields generated in the composites by given localized sources. The expression derived is theoretically confirmed by the comparison with a known representation for the group velocity vector of a plane guided wave. Then it is experimentally validated against laser vibrometer measurements of guided wave packets generated by a piezoelectric wafer active sensor in a composite plate. (C) 2014 Acoustical Society of America.
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