A homogenized damping model for the propagation of elastic wave in a porous solid

This paper develops an averaging technique based on the combination of the eigenfunction expansion method and the collaboration method to investigate the multiple scattering effect of the SH wave propagation in a porous medium. The semi-analytical averaging technique is conducted using Monto Carlo m...

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Bibliographic Details
Published in:arXiv.org 2021-02
Main Authors: Meng, Kangpei, Li, Qingming
Format: Article
Language:English
Subjects:
Damping
Eigenvectors
Elastic waves
Finite element method
Porous media
Propagation
Scattering
SH waves
Stress propagation
Stress waves
Wave attenuation
Wave propagation
Online Access:Get full text
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Summary:This paper develops an averaging technique based on the combination of the eigenfunction expansion method and the collaboration method to investigate the multiple scattering effect of the SH wave propagation in a porous medium. The semi-analytical averaging technique is conducted using Monto Carlo method to understand the macroscopic dispersion and attenuation phenomena of the stress wave propagation in a porous solid caused by the multiple scattering effects. The averaging technique is verified by finite element analysis. Finally, a simple homogenized elastic model with damping is proposed to describe the macroscopic dispersion and attenuation effects of SH waves in porous media.
ISSN:2331-8422
DOI:10.48550/arxiv.2102.08334