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Elastic Waves In Anisotropic Laminates
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Book Synopsis Elastic Waves in Anisotropic Laminates by : G.R. Liu
Download or read book Elastic Waves in Anisotropic Laminates written by G.R. Liu and published by CRC Press. This book was released on 2001-11-13 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic non-destructive evaluation (NDE) plays an increasingly important role in determining properties and detecting defects in composite materials, and the analysis of wave behavior is crucial to effectively using NDE techniques. The complexity of elastic wave propagation in anisotropic media has led to a reliance on numerical methods of analysis-methods that are often quite time-consuming and whose results yield even further difficulties in extracting explicit phenomena and characteristics. Innovative and insightful, Elastic Waves in Anisotropic Laminates establishes a set of high-performance, analytical-numerical methods for elastic wave analysis of anisotropic layered structures. The treatment furnishes a comprehensive introduction, sound theoretical development, and applications to smart materials, plates, and shells. The techniques, detailed in both the time and frequency domains, include methods that combine the finite element method (FEM) with the Fourier transform approach and the strip element method (SEM). These -methods can also be used for expediently finding the Green's function for anisotropic laminates useful for inverse problems related to wave propagation, and methods for inverse analyses, including conjugate gradient methods, and genetic algorithms are also introduced. The text is complemented by many examples generated using software codes based on the techniques developed. Filled with charts and illustrations, Elastic Waves in Anisotropic Laminates is accessible even to readers from non-engineering backgrounds and offers a unique opportunity to discover methods that can lead to an understanding of the dynamic characteristics and wave motion behaviors of advanced composite materials.
Book Synopsis Elastic Waves in Anisotropic Laminates by : Gui-Rong Liu
Download or read book Elastic Waves in Anisotropic Laminates written by Gui-Rong Liu and published by . This book was released on 2002 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic non-destructive evaluation (NDE) plays an increasingly important role in determining properties and detecting defects in composite materials, and the analysis of wave behavior is crucial to effectively using NDE techniques. The complexity of elastic wave propagation in anisotropic media has led to a reliance on numerical methods of analysis-methods that are often quite time-consuming and whose results yield even further difficulties in extracting explicit phenomena and characteristics.Innovative and insightful, Elastic Waves in Anisotropic Laminates establishes a set of high-performance, analytical-numerical methods for elastic wave analysis of anisotropic layered structures. The treatment furnishes a comprehensive introduction, sound theoretical development, and applications to smart materials, plates, and shells. The techniques, detailed in both the time and frequency domains, include methods that combine the finite element method (FEM) with the Fourier transform approach and the strip element method (SEM). These -methods can also be used for expediently finding the Green's function for anisotropic laminates useful for inverse problems related to wave propagation, and methods for inverse analyses, including conjugate gradient methods, and genetic algorithms are also introduced.The text is complemented by many examples generated using software codes based on the techniques developed. Filled with charts and illustrations, Elastic Waves in Anisotropic Laminates is accessible even to readers from non-engineering backgrounds and offers a unique opportunity to discover methods that can lead to an understanding of the dynamic characteristics and wave motion behaviors of advanced composite materials.
Book Synopsis Transient Elastic Waves in Anisotropic Media by : Yong-Yun Kim
Download or read book Transient Elastic Waves in Anisotropic Media written by Yong-Yun Kim and published by . This book was released on 1993 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexural Wave Propagation in Anisotropic Laminates and Inversion Algorithms to Recover Elastic Constants by : Brian B. Elliott
Download or read book Flexural Wave Propagation in Anisotropic Laminates and Inversion Algorithms to Recover Elastic Constants written by Brian B. Elliott and published by . This book was released on 1992 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elastic wave propagation in transversely isotropic media by : R.C. Payton
Download or read book Elastic wave propagation in transversely isotropic media written by R.C. Payton and published by Springer Science & Business Media. This book was released on 1983-10-31 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this monograph I record those parts of the theory of transverse isotropic elastic wave propagation which lend themselves to an exact treatment, within the framework of linear theory. Emphasis is placed on transient wave motion problems in two- and three-dimensional unbounded and semibounded solids for which explicit results can be obtained, without resort to approximate methods of integration. The mathematical techniques used, many of which appear here in book form for the first time, will be of interest to applied mathematicians, engeneers and scientists whose specialty includes crystal acoustics, crystal optics, magnetogasdynamics, dislocation theory, seismology and fibre wound composites. My interest in the subject of anisotropic wave motion had its origin in the study of small deformations superposed on large deformations of elastic solids. By varying the initial stretch in a homogeneously deformed solid, it is possible to synthesize aniso tropic materials whose elastic parameters vary continuously. The range of the parameter variation is limited by stability considerations in the case of small deformations super posed on large deformation problems and (what is essentially the same thing) by the of hyperbolicity (solids whose parameters allow wave motion) for anisotropic notion solids. The full implication of hyperbolicity for anisotropic elastic solids has never been previously examined, and even now the constraints which it imposes on the elasticity constants have only been examined for the class of transversely isotropic (hexagonal crystals) materials.
Book Synopsis Surface Waves in Anisotropic and Laminated Bodies and Defects Detection by : Robert V. Goldstein
Download or read book Surface Waves in Anisotropic and Laminated Bodies and Defects Detection written by Robert V. Goldstein and published by Springer Science & Business Media. This book was released on 2006-02-21 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the variety of wave motions one can single out surface wave pr- agation since these surface waves often adjust the features of the energy transfer in the continuum (system), its deformation and fracture. Predicted by Rayleigh in 1885, surface waves represent waves localized in the vicinity ofextendedboundaries(surfaces)of?uidsorelasticmedia. Intheidealcase of an isotropic elastic half-space while the Rayleigh waves propagate along the surface, the wave amplitude (displacement) in the transverse direction exponentially decays with increasing distance away from the surface. As a resulttheenergyofsurfaceperturbationsislocalizedbytheRayleighwaves within a relatively narrow layer beneath the surface. It is this property of the surface waves that leads to the resonance phenomena that accompany the motion of the perturbation sources (like surface loads) with velocities close to the Rayleigh one; (see e. g. , R. V. Goldstein. Rayleigh waves and resonance phenomena in elastic bodies. Journal of Applied Mathematics and Mechanics (PMM), 1965, v. 29, N 3, pp. 608-619). It is essential to note that resonance phenomena are also inherent to the elastic medium in the case where initially there are no free (unloaded) surfaces. However, they occur as a result of an external action accompanied by the violation of the continuity of certain physical quantities, e. g. , by crack nucleation and dynamic propagation. Note that the aforementioned resonance phenomena are related to the nature of the surface waves as homogeneous solutions (eigenfunctions) of the dynamic elasticity equations for a half-space (i. e. nonzero solutions at vanishing boundary conditions).
Book Synopsis Flexural Wave Propagation in Anisotropic Laminates and Inversion Algorithms to Recover Elastic Constants Using Phase Velocity Measurements by :
Download or read book Flexural Wave Propagation in Anisotropic Laminates and Inversion Algorithms to Recover Elastic Constants Using Phase Velocity Measurements written by and published by . This book was released on 1992 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of the elastic properties of composite materials can be an invaluable tool for both the quality assurance of manufacturing techniques and design verification. Recent advances in ultrasonic velocity measurements have demonstrated the ability to recover elastic properties in anisotropic laminates. A simplified experimental setup was investigated to recover the elastic properties based upon the flexural wave propagation in anisotropic laminates. The initial objective of this thesis was to verify flexural wave propagation in composite laminates through the comparison of experimental and theoretical phase velocities. In the second part of this thesis, the experimental phase velocities were used to calculate the elastic properties of the material by inverting the governing equations. The initial method used to recover elastic constants was successful in the recovery of a partial set of the bending and extensional stiffnesses. The inability to recover all bending stiffnesses dictated the investigation of a second method. This method used an iterative method based upon a nonlinear Newton's method to recover the bending stiffnesses. This method did not converge due to the ill conditioning of the solution matrix. Although this method did not converge, it is believed that more robust methods suggest herein would converge to the proper solution.
Book Synopsis Elastic Waves in Composite Media and Structures by : Subhendu K. Datta
Download or read book Elastic Waves in Composite Media and Structures written by Subhendu K. Datta and published by CRC Press. This book was released on 2019-04-23 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: New applications for composite materials are being developed at a rapid pace. However, their complex microstructures present considerable challenges for nondestructive testing and characterization. Ultrasonic waves provide quantitative means of nondestructive evaluation of these materials and structures. For this purpose, it is necessary to obtain
Book Synopsis Elastic Wave Propagations in Transversely Anisotropic Media by : Bahram Salagegheh
Download or read book Elastic Wave Propagations in Transversely Anisotropic Media written by Bahram Salagegheh and published by . This book was released on 1971 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transient Elastic Waves on Anisotropic Half-spaces by : Timothy W. Taylor
Download or read book Transient Elastic Waves on Anisotropic Half-spaces written by Timothy W. Taylor and published by . This book was released on 1989 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermoelastic Waves in Anisotropic Media by : Dipak K. Banerjee
Download or read book Thermoelastic Waves in Anisotropic Media written by Dipak K. Banerjee and published by . This book was released on 1973 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-efficient Simulation of Surface-excited Guided Lamb Wave Propagation in Composites by : Alexander Karmazin
Download or read book Time-efficient Simulation of Surface-excited Guided Lamb Wave Propagation in Composites written by Alexander Karmazin and published by KIT Scientific Publishing. This book was released on 2014-05-22 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The methods of time-efficient simulation of surface-excited wave propagation in plate-like multilayered composites are presented. The mathematical model of wave propagation in laminated plate based on the elasticity theory is transformed and then solved in wavenumber-frequency domain. The numerical methods for computation of inverse transform in time-space domain are developed and used for analysis of wave and energy propagation phenomena occurring in composite plates due to surface excitation.
Book Synopsis Modern Theory of Anisotropic Elasticity and Applications by : Julian J. Wu
Download or read book Modern Theory of Anisotropic Elasticity and Applications written by Julian J. Wu and published by SIAM. This book was released on 1991-01-01 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of 26 original papers, some of them substantially revised after the workshop, discuss anisotropic elasticity and its applications in solid mechanics and applied mathematics. Considering elastostatics, elastodynamics, and constitutive relations, they discuss such topics as Green's functio
Book Synopsis Materials and Acoustics Handbook by : Michel Bruneau
Download or read book Materials and Acoustics Handbook written by Michel Bruneau and published by John Wiley & Sons. This book was released on 2013-05-10 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a group of acoustics and vibration specialists, this book studies the acoustic and vibrating phenomena that occur in diverse materials used for all kinds of purposes. The first part studies the fundamental aspects of propagation: analytical, numerical and experimental. The second part outlines industrial and medical applications. Covering a wide range of topics that associate materials science with acoustics, this will be of invaluable use to researchers, engineers, or practitioners in this field, as well as students in acoustics, physics, and mechanics.
Book Synopsis Lamb-Wave Based Structural Health Monitoring in Polymer Composites by : Rolf Lammering
Download or read book Lamb-Wave Based Structural Health Monitoring in Polymer Composites written by Rolf Lammering and published by Springer. This book was released on 2017-08-30 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses especially on the application of SHM technology to thin walled structural systems made from carbon fiber reinforced plastics. Here, guided elastic waves (Lamb-waves) show an excellent sensitivity to structural damages so that they are in the center of this book. It is divided into 4 sections dealing with analytical, numerical and experimental fundamentals, and subsequently with Lamb-wave propagation in fiber reinforced composites, SHM-systems and signal processing. The book is designed for engineering students as well as for researchers in the field of structural health monitoring and for users of this technology.
Book Synopsis Elastic Wave Propagation in Anisotropic Media by : Juergen H. Staudte
Download or read book Elastic Wave Propagation in Anisotropic Media written by Juergen H. Staudte and published by . This book was released on 1967 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propagation of plane elastic waves in an anisotropic material is investigated. Using a compact tensor notation, the theory is developed, such that the fundamental quantities necessary to describe wave propagation can be calculated. These include the velocities of the wavefronts of the acoustic beam, the particle displacement vectors, and the directions of the energy flow. A computer program, which numerically calculates these quantities, is included. (Author).
Book Synopsis Analysis of Piezoelectric Structures and Devices by : Daining Fang
Download or read book Analysis of Piezoelectric Structures and Devices written by Daining Fang and published by Walter de Gruyter. This book was released on 2013-08-01 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited work covers piezoelectric materials in the form of beams, plates, shells, and other structural components in modern devices and structures. Applications are frequency control and detection functions in resonators, sensors, actuators, oscillations, and other smart and intelligent structures. The products and technology are with us in our daily life through computers and communication devices. The contributions cover novel methods for the analysis of piezoelectric structures including wave propagation, high frequency vibration, material characterization, and optimization of structures. Understanding of these methods is increasingly important in the design and modelling of next generation devices and micro-structures with piezoelectric elements and effects.
