Rayleigh Wave Dispersion Due to Spatial (FEM) Discretization of a thin Elastic Solid Having Non-Curved Boundary

0338589 - ÚT 2010 GB eng J - Journal Article
Brepta, R. - Valeš, F. - Červ, Jan - Tikal, B.
Rayleigh Wave Dispersion Due to Spatial (FEM) Discretization of a thin Elastic Solid Having Non-Curved Boundary.
Computers and Structures. Roč. 58, č. 6 (1996), s. 1233-1244. ISSN 0045-7949. E-ISSN 1879-2243
R&D Projects: GA ČR(CZ) GA101/93/1195
Institutional research plan: CEZ:AV0Z2076919
Keywords : thin elastic body * Rayleigh waves * grid dispersion
Subject RIV: BI - Acoustics
Impact factor: 0.254, year: 1996
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The grid dispersion for a harmonic Rayleigh wave propagating along a straight boundary of a thin elastic solid, modelled by finite elements, is investigated. It is shown that with an increase of dimensionless wavenumber y.q, a phase velocity of Rayleigh waves increases from the long wave limit CR. For sufficiently short waves it follows the dispersion curve referring to quasitransverse waves in an unbounded discretized medium.
Permanent Link: http://hdl.handle.net/11104/0182321