Absorption, scattering, and radiation force efficiencies in the longitudinal wave scattering by a small viscoelastic particle in an isotropic solid

2017 ◽  
Vol 142 (5) ◽  
pp. 2866-2872 ◽  
Author(s):  
J. H. Lopes ◽  
J. P. Leão-Neto ◽  
G. T. Silva
Keyword(s):  
Longitudinal Wave ◽  
Wave Scattering ◽  
Radiation Force ◽  
Isotropic Solid ◽  
Scattering And Radiation

Hydrodynamic coefficients of a floater near a partially reflecting seawall in the presence of an array of caisson blocks

2021 ◽  
pp. 1-23
Author(s):  
K G Vijay ◽  
Santanu Koley ◽  
Kshma Trivedi ◽  
Chandra Shekhar Nishad
Keyword(s):  
Wave Scattering ◽  
Structural Parameters ◽  
Wave Force ◽  
Vertical Force ◽  
Hydrodynamic Coefficients ◽  
Floating Structure ◽  
Surface Gravity Wave ◽  
Damping Coefficients ◽  
Half Wavelength ◽  
Scattering And Radiation

Abstract In the present study, surface gravity wave scattering and radiation by a freely floating rectangular buoy placed near a partially reflecting seawall and in the presence of an array of caisson blocks are analyzed. Various hydrodynamic parameters related to the wave scattering and radiation, such as the added mass and radiation damping coefficients, correspond to sway, heave and roll motions of the floating buoy, horizontal force, vertical force and moment acting on the floating structure, and horizontal wave force acting on the partially reflecting seawall are studied for a variety of wave and structural parameters. The study reveals that the resonating pattern in various hydrodynamic coefficients occurs for moderate values of the wavenumber. Further, when the distance between the floater and the sidewall is an integral time of half wavelength, the resonating behavior in the sway, heave and roll added masses, and associated damping coefficients appears, and the aforementioned hydrodynamic coefficients change rapidly around this zone. These resonance phenomena can be diminished significantly with appropriate positioning of the floater with respect to the sidewall and in the presence of partially reflecting seawall.

Longitudinal wave scattering from rough crack-like defects

2011 ◽  
Vol 58 (10) ◽  
pp. 2171-2180 ◽  
Author(s):  
Jie Zhang ◽  
B. W. Drinkwater ◽  
P. D. Wilcox
Keyword(s):  
Longitudinal Wave ◽  
Wave Scattering

Axisymmetric Scattering of a Plane Longitudinal Wave by a Circular Crack in a Transversely Isotropic Solid

1991 ◽  
Vol 58 (3) ◽  
pp. 695-702 ◽  
Author(s):  
T. Kundu ◽  
A. Bostro¨m
Keyword(s):  
Integral Equation ◽  
Longitudinal Wave ◽  
Legendre Polynomials ◽  
Circular Crack ◽  
Transversely Isotropic ◽  
Edge Condition ◽  
Phase Method ◽  
Stationary Phase Method ◽  
Isotropic Solid ◽  
Plane Longitudinal Wave

The scattering of elastic waves by a circular crack situated in a transversely isotropic solid is studied here. The axis of material symmetry and the axis of the crack coincides. The incident wave is taken as a plane longitudinal wave propagating perpendicular to the crack surface. A Hankel transform representation of the scattered field is used, and after some manipulations using the boundary conditions this leads to an integral equation over the crack for the displacement jump across the crack. This jump is expanded in a series of Legendre polynomials which fulfill the correct edge condition and the integral equation is projected on the same set of Legendre polynomials. The far field is computed by the stationary phase method. A few numerical computations are carried out for both isotropic and anisotropic solids. Results for the isotropic solid compare favorably with those available in the literature.

Longitudinal wave scattering from a partially bonded fiber

Wave Motion ◽  
1992 ◽  
Vol 15 (1) ◽  
pp. 43-59 ◽  
Author(s):  
Yang Yang ◽  
Andrew Norris
Keyword(s):  
Longitudinal Wave ◽  
Wave Scattering
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