Journal article
Wave dispersion in thin-walled orthotropic waveguides using the first order shear deformation theory
Thin-walled structures, v 103
01 Jun 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The aim of this paper is to extract the dispersion parameters, i.e. phase velocity, energy velocity and attenuation, of orthotropic thin-walled waveguides with generic cross-section. To this end, a semi analytical finite element (SAFE) formulation is presented, which is based on the Reissner-Mindlin theory of curved shells.
Complex axial wavenumbers and mode shapes of guided wave modes are extracted from a second order polynomial eigenvalue problem, while the energy velocity is post-processed using the computed eigensolutions and SAFE operators.
Different numerical examples are proposed, for which the obtained results are in very good agreement with those computed using other well-stated SAFE formulations. (C) 2016 Elsevier Ltd. All rights reserved.
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Details
- Title
- Wave dispersion in thin-walled orthotropic waveguides using the first order shear deformation theory
- Creators
- M. Mazzotti - Drexel UniversityI. Bartoli - Drexel UniversityM. Miniaci - University of TurinA. Marzani - University of Bologna
- Publication Details
- Thin-walled structures, v 103
- Publisher
- Elsevier
- Number of pages
- 13
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000374606800011
- Scopus ID
- 2-s2.0-84959353444
- Other Identifier
- 991019168375704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Civil
- Engineering, Mechanical
- Mechanics