Author: Georgia LynottPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Efficient Numerical Evaluation of the Scattering of Acoustic and Elastic Waves by Arrays of Cylinders of Arbitrary Cross Section
Author: Georgia LynottEfficient Numerical Evaluation of the Scattering of Acoustic Waves by Arrays of Cylinders and Bodies of Revolution of Arbitrary Cross Section
Author: Victoria AndrewScattering of Acoustic and Elastic Waves by Surfaces of Arbitrary Shape
Author: Robert Peter BanaughPublisher:
ISBN:
Category : Elastic waves
Languages : en
Pages : 196
Book Description
Acoustic, Electromagnetic, and Elastic Wave Scattering--focus on the T-matrix Approach
Author: V. K. VaradanPublisher: Pergamon
ISBN:
Category : Science
Languages : en
Pages : 712
Book Description
Underwater Scattering and Radiation
Author: Allan D. PiercePublisher: Academic Press
ISBN: 1483257762
Category : Technology & Engineering
Languages : en
Pages : 395
Book Description
Underwater Scattering and Radiation describes the relevant theoretical foundations of underwater scattering and radiation. Acoustic scattering from elastic solids is discussed, and variational formulations in acoustic radiation and scattering are presented. Surface waves and quasi-cylindrical modes are also explored, along with the Helmholtz-Kirchhoff integral corollaries. Comprised of two chapters, this volume begins with a comprehensive account of scattering by elastic objects, focusing on the classic idealized shapes of spheres and infinite cylinders. The reader is introduced to important concepts such as normal modes, the S-matrix, and the T-matrix as well as resonances, whispering gallery modes, Franz modes, and Stoneley waves. Subsequent sections describe methods for treating scattering by elastic bodies of more general shapes. The T-matrix formalism is discussed and then applied to spheroidal scatterers and finite cylinders. The second chapter analyzes how variational principles can be used in acoustics, with the choice of topics directed toward applications to underwater acoustic radiation and scattering. This book will be of interest to physicists.
Advances in Applied Mechanics
Author: Publisher: Academic Press
ISBN: 0080563996
Category : Technology & Engineering
Languages : en
Pages : 263
Book Description
Advances in Applied Mechanics
Low and High Frequency Asymptotics
Author: V.K. VaradanPublisher: Elsevier
ISBN: 1483290786
Category : Technology & Engineering
Languages : en
Pages : 535
Book Description
This volume focuses on asymptotic methods in the low and high frequency limits for the solution of scattering and propagation problems. Each chapter is pedagogical in nature, starting with the basic foundations and ending with practical applications. For example, using the Geometrical Theory of Diffraction, the canonical problem of edge diffraction is first solved and then used in solving the problem of diffraction by a finite crack. In recent times, the crack problem has been of much interest for its applications to Non-Destructive Evaluation (NDE) of flaws in structural materials.
Interface Effects in Elastic Wave Scattering
Author: Samuel D. BoganPublisher: Springer Science & Business Media
ISBN: 3540483063
Category : Technology & Engineering
Languages : en
Pages : 193
Book Description
The authors study dynamical effects of incident compressional and distortional elastic waves on a layer of planar, cylindrical, or spherical geometry, especially focusing on the stress fields surrounding the layer. These results are derived from the exact solutions for elastic wave scattering from such interfaces developped in the first part of the book. Comparisons of numerical solutions of special problems with the analytical solutions are given and it is shown how the latter help to simplify the numerical treatment. The material presented in this monograph will help in developing composite materials with improved chemical and physical properties and in non-destructive testing of such materials. Engineers, physicists, and workers in applied mathematics will welcome this well written text. It may also be used for additional reading in a course on elasto-mechanics.
Scattering of Acoustic Waves by Elastic and Viscoelastic Obstacles of Arbitrary Shape Immersed in a Fluid
Author: Bo A. PetersonPublisher:
ISBN:
Category :
Languages : en
Pages : 44
Book Description
A scattering or T-matrix approach is presented for studying the scattering of acoustic waves by elastic and viscoelastic obstacles immersed in a fluid. A Kelvin-Voigt model is used to obtain the complex elastic moduli of the viscoelastic solid. The T-matrix formulation is somewhat complicated because the wave equations and fields are quite different in the solid and fluid regions and are coupled by continuity conditions at the interface. We have obtained fairly extensive numerical results for prolate and oblate spheroids for a variety of scattering geometries. The backscattering, bistatic, absorption and extinction cross-section are presented as a function of the frequency of the incident wave. (Author).
The Scattering of Elastic Waves with Application to Foundation Isolation
Author: Samson Sim Cheng LiaoPublisher:
ISBN:
Category : Elastic waves
Languages : en
Pages : 360
Book Description