Scattering of anti-plane shear waves by arbitrarily distributed circular cylinders in a functionally graded multiferroic fibrous composite

Kuo, Hsin-Yi; Huang, Yu; Sun, Chi Hsiang

doi:10.1007/s00707-017-2079-x

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…Early work such as [8,9] investigated hollow cylinders embedded in a solid infinite isotropic medium as a scatterer and laid the formulation of plane waves scattering for compressional/longitudinal (P) and shear (S) waves experiencing mode conversion, while Lewis et al [10] generalised the formulations for a solid cylindrical scatterer. Furthermore, in composites [11] studied scattering for single modes by a cylindrical fibre and [12] developed a theoretical framework to study multiferroic composites that consist of randomly distributed fibres. Stress wave propagation in anisotropic wood formulations was investigated by [13].…”

Section: Introductionmentioning

confidence: 99%

Computational Study of Scattering Elastic Waves Due to a Teredo Marine Borer-Like Cylindrical Defect Embedded in an Isotropic Solid Cylinder

Mahil

Kong

Vien

2021

Materials Research Proceedings

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Abstract. This paper showcases a quantitative investigation of scattering of ultrasonic waves experiences when impinging on a cylindrical defect inside a solid cylinder. Such cylindrical bores reduce the structural capacity of the cylinder, these defects constitute an even greater risk as they cannot be observed from the surface. The focal point investigated herein is to develop a better understanding of the wave’s scattering when interacting with defects of cylindrical bore, mimicking the Teredo marine borer, within the solid cylinder. Two-dimensional Finite Element simulations are carried out using ABAQUS software. A 200 kHz 5.5 cycle Hann windowed excitation on an isotropic cylinder is simulated a point source excitation at the circumference of the cylinder is used. The scattering wave fields from a range of defect diameters through the solid cylinder are presented. Using Two-Dimensional Fast Fourier Transform, the wave mode and velocity of the scattered wavefield along various directions was identified in cylindrical coordinates, to decouple the wave modes. Computational results are presented for the scattering pattern as a function of cylindrical bore diameter size relative to wavelength. This study serves as an efficient approach when choosing an input for ultrasonic imaging, with the aim to obtain high fidelity imaging resolution for structural health monitoring applications.

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Section: Introductionmentioning

confidence: 99%

Computational Study of Scattering Elastic Waves Due to a Teredo Marine Borer-Like Cylindrical Defect Embedded in an Isotropic Solid Cylinder

Mahil

Kong

Vien

2021

Materials Research Proceedings

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Strain-gradient solution to elastodynamic scattering from a cylindrical inhomogeneity

Delfani

Bidi

2024

International Journal of Mechanical Sciences

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Scattering of SH Wave by a Semi-Circle Inclusion Embedded in Bi-Material Half Space Surface

Jang¹,

Ri²,

Ri³

et al. 2020

J. mech.

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Investigation of SH wave scattering by inclusions in bi-material half space is an important issue in engineering. The purpose of this work is to study the dynamic response of a semi-circle inclusion embedded in bi-material half space surface by SH wave. Graf’s addition theorem, Green function method and region-matching technique are used to determine the displacement fields in the bi-material half space and the inclusion. The distributions of dynamic stress concentration factor (DSCF) around the semi-circle inclusion are depicted graphically considering different material parameters. The results show that the frequency and the incidence angle of SH wave, the rigidities of the inclusion and bi-material half space, and the distance from the inclusion to the interface have a great effect on the distribution of DSCF around the inclusion.

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Scattering of anti-plane shear waves by arbitrarily distributed circular cylinders in a functionally graded multiferroic fibrous composite

Cited by 4 publications

References 31 publications

Computational Study of Scattering Elastic Waves Due to a Teredo Marine Borer-Like Cylindrical Defect Embedded in an Isotropic Solid Cylinder

Computational Study of Scattering Elastic Waves Due to a Teredo Marine Borer-Like Cylindrical Defect Embedded in an Isotropic Solid Cylinder

Strain-gradient solution to elastodynamic scattering from a cylindrical inhomogeneity

Scattering of SH Wave by a Semi-Circle Inclusion Embedded in Bi-Material Half Space Surface

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