Nonlinear Ultrasonic Guided Waves For Quantitative Life Prediction Of Structures With Complex Geometries

DOWNLOAD

Download Nonlinear Ultrasonic Guided Waves For Quantitative Life Prediction Of Structures With Complex Geometries PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Nonlinear Ultrasonic Guided Waves For Quantitative Life Prediction Of Structures With Complex Geometries book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Nonlinear Ultrasonic Guided Waves For Quantitative Life Prediction Of Structures With Complex Geometries

DOWNLOAD
Author : Thibaut Bernard Autrusson
language : en
Publisher:
Release Date : 2009

Nonlinear Ultrasonic Guided Waves For Quantitative Life Prediction Of Structures With Complex Geometries written by Thibaut Bernard Autrusson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Service life (Engineering) categories.

Material damage such as dislocations and microcracks are characteristic of early stages of fatigue. Accumulation of these nascent cracks leads to non-linear elastic response of the material. These non-linearities can be detected from harmonic generation for propagating elastic waves. The long term goal of this study is to investigate the non-linear elastic propagation in parts with complex geometry. Cellular Automata is introduced as a new simulation method, in order to develop new analysis on quadratic non-linearities. An existing linear code was progressively modified to take into account a different constitutive law. Also the boundary conditions need to be reviewed to ensure free stress with the non-linear behavior. The propagation of the longitudinal wave is investigated in detail. Numerical accuracy is validated from comparison with a closed, for both linear and non-linear code. The reflection of the non-linear P-wave gives confirmation for the correct treatment of the boundary condition. Finally the capabilities of the Cellular Automata code are underlined for reflection of Lamb waves for various boundary conditions.

Bone Quantitative Ultrasound

DOWNLOAD
Author : Pascal Laugier
language : en
Publisher: Springer Nature
Release Date : 2022-05-05

Bone Quantitative Ultrasound written by Pascal Laugier and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-05 with Medical categories.

Many significant achievements in new ultrasound technologies to measure bone and models to elucidate the interaction and the propagation of ultrasonic waves in complex bone structures have been reported over the past ten years. Impaired bone remodeling affects not only the trabecular compartment but also the cortical one. Despite the crucial contribution of the cortical structure to the whole bone mechanical competence, cortical bone was understudied for a long time. A paradigm shift occurred around 2010, with a special focus placed on the importance of cortical bone. This has sparkled a great deal of interest in new ultrasound techniques to assess cortical bone. While our book ‘Bone Quantitative Ultrasound’ published in 2011 emphasized techniques to measure trabecular bone, this new book is devoted for a large part to the technologies introduced recently to measure cortical bone. These include resonant ultrasound spectroscopy, guided waves, scattering, and pulse-echo and tomography imaging techniques. Instrumentation, signal processing techniques and models used are detailed. Importantly, the data accumulated in recent years such as anisotropic stiffness, elastic engineering moduli, compression and shear wave speeds of cortical bones from various skeletal sites are presented comprehensively. A few chapters deal with the recent developments achieved in quantitative ultrasound of trabecular bone. These include (i) scattering-based approaches and their application to measure skeletal sites such as the spine and proximal femur and (ii) approaches exploiting the poro-elastic nature of bone. While bone fragility and osteoporosis are still the main motivation for developing bone QUS, this Book also includes chapters reporting ultrasound techniques developed for other applications of high interest such as 3-D imaging of the spine, assessment of implant stability and transcranial brain imaging. This book, together with the book ‘Bone Quantitative Ultrasound’ published in 2011 will provide a comprehensive overview of the methods and principles used in bone quantitative ultrasound and will be a benchmark for all novice or experienced researchers in the field. The book will offer recent experimental results and theoretical concepts developed so far and would be intended for researchers, graduate or undergraduate students, engineers, and clinicians who are involved in the field. The book should be considered as a complement to the first book publisher in 2011, rather than a second edition, in the sense that basic notions already presented in the first book are not repeated.

Ultrasonic Guided Waves In Solid Media

DOWNLOAD
Author : Joseph L. Rose
language : en
Publisher: Cambridge University Press
Release Date : 2014-08-11

Ultrasonic Guided Waves In Solid Media written by Joseph L. Rose and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-11 with Medical categories.

Ultrasonic guided waves in solid media are important in nondestructive testing and structural health monitoring, as new faster, more sensitive, and economical ways of looking at materials and structures have become possible. This book can be read by managers from a "black box" point of view, or used as a professional reference or textbook.

Fundamentals And Applications Of Ultrasonic Waves

DOWNLOAD
Author : J. David N. Cheeke
language : en
Publisher: CRC Press
Release Date : 2017-12-19

Fundamentals And Applications Of Ultrasonic Waves written by J. David N. Cheeke and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-19 with Science categories.

Written at an intermediate level in a way that is easy to understand, Fundamentals and Applications of Ultrasonic Waves, Second Edition provides an up-to-date exposition of ultrasonics and some of its main applications. Designed specifically for newcomers to the field, this fully updated second edition emphasizes underlying physical concepts over mathematics. The first half covers the fundamentals of ultrasonic waves for isotropic media. Starting with bulk liquid and solid media, discussion extends to surface and plate effects, at which point the author introduces new modes such as Rayleigh and Lamb waves. This focus on only isotropic media simplifies the usually complex mathematics involved, enabling a clearer understanding of the underlying physics to avoid the complicated tensorial description characteristic of crystalline media. The second part of the book addresses a broad spectrum of industrial and research applications, including quartz crystal resonators, surface acoustic wave devices, MEMS and microacoustics, and acoustic sensors. It also provides a broad discussion on the use of ultrasonics for non-destructive evaluation. The author concentrates on the developing area of microacoustics, including exciting new work on the use of probe microscopy techniques in nanotechnology. Focusing on the physics of acoustic waves, as well as their propagation, technology, and applications, this book addresses viscoelasticity, as well as new concepts in acoustic microscopy. It updates coverage of ultrasonics in nature and developments in sonoluminescence, and it also compares new technologies, including use of atomic force acoustic microscopy and lasers. Highlighting both direct and indirect applications for readers working in neighboring disciplines, the author presents particularly important sections on the use of microacoustics and acoustic nanoprobes in next-generation devices and instruments.

Computerized Tomography For Scientists And Engineers

DOWNLOAD
Author : Prabhat Munshi
language : en
Publisher: CRC Press
Release Date : 2007-01-04

Computerized Tomography For Scientists And Engineers written by Prabhat Munshi and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-04 with Medical categories.

This volume provides examples of applications of tomography in engineering from leading CT experts. Typical problems include monitoring of multiphase flows, crystal growth, blast furnaces, stirred vessels, non-destructive testing, plasma diagnostics, and determining the strength of bones. X and Y- rays, electrical impedance and resistance measurements, ultrasound, and lasers are all covered. Various mathematical issues are addressed as are various physical problems. As the book provides an account of current developments in imaging, it is quite useful applied to other fields where identical mathematical techniques are employed. Imaging has evolved into an interdisciplinary field with mathematics as a common language.

The Scaled Boundary Finite Element Method

DOWNLOAD
Author : Chongmin Song
language : en
Publisher: John Wiley & Sons
Release Date : 2018-09-04

The Scaled Boundary Finite Element Method written by Chongmin Song and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-04 with Science categories.

An informative look at the theory, computer implementation, and application of the scaled boundary finite element method This reliable resource, complete with MATLAB, is an easy-to-understand introduction to the fundamental principles of the scaled boundary finite element method. It establishes the theory of the scaled boundary finite element method systematically as a general numerical procedure, providing the reader with a sound knowledge to expand the applications of this method to a broader scope. The book also presents the applications of the scaled boundary finite element to illustrate its salient features and potentials. The Scaled Boundary Finite Element Method: Introduction to Theory and Implementation covers the static and dynamic stress analysis of solids in two and three dimensions. The relevant concepts, theory and modelling issues of the scaled boundary finite element method are discussed and the unique features of the method are highlighted. The applications in computational fracture mechanics are detailed with numerical examples. A unified mesh generation procedure based on quadtree/octree algorithm is described. It also presents examples of fully automatic stress analysis of geometric models in NURBS, STL and digital images. Written in lucid and easy to understand language by the co-inventor of the scaled boundary element method Provides MATLAB as an integral part of the book with the code cross-referenced in the text and the use of the code illustrated by examples Presents new developments in the scaled boundary finite element method with illustrative examples so that readers can appreciate the significant features and potentials of this novel method—especially in emerging technologies such as 3D printing, virtual reality, and digital image-based analysis The Scaled Boundary Finite Element Method: Introduction to Theory and Implementation is an ideal book for researchers, software developers, numerical analysts, and postgraduate students in many fields of engineering and science.

Scientific And Technical Aerospace Reports

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1988

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Aeronautics categories.

Structural Health Monitoring 2015

DOWNLOAD
Author : Fu-Kuo Chang
language : en
Publisher:
Release Date : 2015

Structural Health Monitoring 2015 written by Fu-Kuo Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Automatic data collection systems categories.

Mathematics Of Wave Phenomena

DOWNLOAD
Author : Willy Dörfler
language : en
Publisher: Springer Nature
Release Date : 2020-10-01

Mathematics Of Wave Phenomena written by Willy Dörfler and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-01 with Mathematics categories.

Wave phenomena are ubiquitous in nature. Their mathematical modeling, simulation and analysis lead to fascinating and challenging problems in both analysis and numerical mathematics. These challenges and their impact on significant applications have inspired major results and methods about wave-type equations in both fields of mathematics. The Conference on Mathematics of Wave Phenomena 2018 held in Karlsruhe, Germany, was devoted to these topics and attracted internationally renowned experts from a broad range of fields. These conference proceedings present new ideas, results, and techniques from this exciting research area.

International Aerospace Abstracts

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1996

International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Aeronautics categories.