Journal article
A semi-analytical finite element formulation for modeling stress wave propagation in axisymmetric damped waveguides
Journal of sound and vibration, v 318(3), pp 488-505
09 Dec 2008
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Abstract
A semi-analytical finite element (SAFE) method is presented for analyzing the wave propagation in viscoelastic axisymmetric waveguides. The approach extends a recent study presented by the authors, in which the general SAFE method was extended to account for material damping. The formulation presented in this paper uses the cylindrical coordinates to reduce the finite element discretization over the waveguide cross-section to a mono-dimensional mesh. The algorithm is validated by comparing the dispersion results with viscoelastic cases for which a Superposition of Partial Bulk Waves solution is known. The formulation accurately predicts dispersion properties and does not show any missing root. Applications to viscoelastic axisymmetric waveguides with varying mechanical and geometrical properties are presented. (c) 2008 Elsevier Ltd. All rights reserved.
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Details
- Title
- A semi-analytical finite element formulation for modeling stress wave propagation in axisymmetric damped waveguides
- Creators
- Alessandro Marzani - University of BolognaErasmo Viola - University of BolognaIvan Bartoli - Univ Calif San Diego, Dept Struct Engn, NDE, La Jolla, CA 92093 USAFrancesco Lanza di Scalea - Univ Calif San Diego, Dept Struct Engn, NDE, La Jolla, CA 92093 USAPlervincenzo Rizzo - University of Pittsburgh
- Publication Details
- Journal of sound and vibration, v 318(3), pp 488-505
- Publisher
- Elsevier
- Number of pages
- 18
- Grant note
- Italian Ministry for University and Scientific & Technological Research MIUR; Ministry of Education, Universities and Research (MIUR) 59A0538 / California Department of Transportation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000259755500005
- Scopus ID
- 2-s2.0-50549088137
- Other Identifier
- 991020547450304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Acoustics
- Engineering, Mechanical
- Mechanics