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Vibro-acoustic 3D FE simulations to validate a SAFE-BEM formulation for leaky waves computation
Conference proceeding

Vibro-acoustic 3D FE simulations to validate a SAFE-BEM formulation for leaky waves computation

M. Mazzotti, I. Bartoli, G. Castellazzi, A. Marzani and Q. Mao
HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS 2014, v 9064, pp 906413-906413-10
01 Jan 2014

Abstract

Engineering Engineering, Biomedical Engineering, Civil Optics Physical Sciences Science & Technology Technology
Vibroacoustic three-dimensional finite element simulations are performed to validate a novel formulation that model leaky guided waves properties for waveguides surrounded by fluids. The above formulation couples a mesh of semi-analytical finite elements (SAFE), to discretize the waveguide cross-section, with a mesh of boundary elements (BEM) to model the unbounded outer fluid domain. The resulting dispersion curves are validated through dedicated finite element simulations where the extracted time-transient waveforms are analyzed via a modified Matrix Pencil Method in time and space. Wave simulations are achieved using ABAQUS/Explicit for an elastic steel bar of square cross section immersed in water and the results obtained are compared with those given by the SAFE-BEM melthod.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Engineering, Biomedical
Engineering, Civil
Optics
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