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Author : Arthur J. Decker
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (317 download)
Download or read book Damage Detection Using Holography and Interferometry written by Arthur J. Decker and published by . This book was released on 2003 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781720455424
Total Pages : 34 pages
Book Rating : 4.4/5 (554 download)
Download or read book Damage Detection Using Holography and Interferometry written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews classical approaches to damage detection using laser holography and interferometry. The paper then details the modern uses of electronic holography and neural-net-processed characteristic patterns to detect structural damage. The design of the neural networks and the preparation of the training sets are discussed. The use of a technique to optimize the training sets, called folding, is explained. Then a training procedure is detailed that uses the holography-measured vibration modes of the undamaged structures to impart damage-detection sensitivity to the neural networks. The inspections of an optical strain gauge mounting plate and an International Space Station cold plate are presented as examples.Decker, Arthur J.Glenn Research CenterDAMAGE; HOLOGRAPHY; LASER INTERFEROMETRY; NEURAL NETS; NONDESTRUCTIVE TESTS; STRUCTURAL ANALYSIS; INSPECTION; INTERNATIONAL SPACE STATION; STRAIN GAGES; VIBRATION MODE; DAMAGE ASSESSMENT
Author : Pramod K. Rastogi
Publisher : Springer
ISBN 13 : 3540480781
Total Pages : 343 pages
Book Rating : 4.5/5 (44 download)
Download or read book Holographic Interferometry written by Pramod K. Rastogi and published by Springer. This book was released on 2013-04-17 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holographic Interferometry provides a valuable and up-to-date source of information in the rapidly expanding field. The eight specialists` contributions cover the principles and methods currently in use. The scope of the book has been limited to the study of opaque object and ample space has been devoted to a comprehensive treatment of the phenomena of fringe formation, with a particular emphasis on the quantitative evaluation of the holographic interference fringe patterns. The emergence of computer-aided fringe analysis and phase-shifting techniques have simplified considerably the quantative real-time measurements of object shapes and deformations. The last two chapters provide a reasonably detailedoverview of full-field holographic methods for the measurement of shapes, displacements, dervatives, difference displacements and vibrations.
Author : Carolyn Mercer
Publisher : Springer Science & Business Media
ISBN 13 : 1475737777
Total Pages : 468 pages
Book Rating : 4.4/5 (757 download)
Download or read book Optical Metrology for Fluids, Combustion and Solids written by Carolyn Mercer and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Metrology for Fluids, Combustion and Solids is the first practical handbook that presents the assemblage of the techniques necessary to provide a basic understanding of optical measurement for fluids, combustion, and solids. The use of light as a measurement tool has grown over the past twenty years from a narrowly specialized activity to a mainstay of modern research today. Until recently, the knowledge that could be extracted from the light interaction of light with physical objects was limited to specialized activities. The invention of the laser, the computer and microelectronics has enabled a measurement revolution such that virtually every parameter of engineering interest can be measured using the minimally intrusive properties of light. The authors of this book's chapters are leaders in this revolution. They work on the front lines of research in government, industry, and universities, inventing yet more ways to harness the power of light for the generation of knowledge.
Author : Frank D. Adams
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Technique for Obtaining Improved Real-time Holographic Interferometric Data Using Pulse Modulated Illumination written by Frank D. Adams and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations and experiments were performed to show that the fringe patterns on a vibrating structure, as observed using real-time holographic interferometry, has a substantially increased contrast ratio if the laser illumination is amplitude modulated by a sequence of pulses which are synchronized with the vibration. The time and effort required to obtain interferometric data using this method is an order of magnitude less than that needed when using time-average holographic interferograms. Potential applications include experimental studies of fatigue damage, crack detection and propagation, flaw detection in composite and honeycomb structures as well as vibration analysis of structural members.
Author : R. B. Pipes
Publisher : ASTM International
ISBN 13 :
Total Pages : 365 pages
Book Rating : 4./5 ( download)
Download or read book Nondestructive Evaluation and Flaw Criticality for Composite Materials written by R. B. Pipes and published by ASTM International. This book was released on 1979 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : DIANE Publishing
ISBN 13 : 1428918191
Total Pages : 264 pages
Book Rating : 4.4/5 (289 download)
Download or read book Research & Technology 2003 written by and published by DIANE Publishing. This book was released on with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 656 pages
Book Rating : 4.F/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rajpal Sirohi
Publisher : CRC Press
ISBN 13 : 1420017764
Total Pages : 316 pages
Book Rating : 4.4/5 (2 download)
Download or read book Optical Methods of Measurement written by Rajpal Sirohi and published by CRC Press. This book was released on 2018-09-03 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Methods of Measurement: Wholefield Techniques, Second Edition provides a comprehensive collection of wholefield optical measurement techniques for engineering applications. Along with the reorganization of contents, this edition includes a new chapter on optical interference, new material on nondiffracting and singular beams and their applications, and updated bibliography and additional reading sections. The book explores the propagation of laser beams, metrological applications of phase-singular beams, various detectors such as CCD and CMOS devices, and recording materials. It also covers interference, diffraction, and digital fringe pattern measurement techniques, with special emphasis on phase measurement interferometry and algorithms. The remainder of the book focuses on theory, experimental arrangements, and applications of wholefield techniques. The author discusses digital hologram interferometry, digital speckle photography, digital speckle pattern interferometry, Talbot interferometry, and holophotoelasticity. This updated book compiles the major wholefield methods of measurement in one volume. It provides a solid understanding of the techniques by describing the physics behind them. In addition, the examples given illustrate how the techniques solve measurement problems.
Author : A. Vautrin
Publisher : Springer Science & Business Media
ISBN 13 : 9401136580
Total Pages : 458 pages
Book Rating : 4.4/5 (11 download)
Download or read book Mechanical Identification of Composites written by A. Vautrin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles M. Vest
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.3/5 (91 download)
Download or read book Holographic Interferometry written by Charles M. Vest and published by Wiley-Interscience. This book was released on 1979-02-15 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unified, comprehensive, self-contained treatment of theory, practice, and application, including related coherent optical techniques. Emphasizes quantitative evaluation of holographic interferograms of both opaque and transparent objects, explaining how tools such as the laser and holography are being applied to present-day measurement problems. Applies clear, simple, physical reasoning to present practical information and data; circumvents complicated mathematics wherever possible. Includes over 700 cited references, numerous line drawings and photographs, and several useful tables and equations relating optical data to physical properties.
Author :
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (317 download)
Download or read book Neural-Net Processed Electronic Holography for Rotating Machines written by and published by . This book was released on 2003 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Keith B Armstrong
Publisher : SAE International
ISBN 13 : 0768093163
Total Pages : 564 pages
Book Rating : 4.7/5 (68 download)
Download or read book Care and Repair of Advanced Composites written by Keith B Armstrong and published by SAE International. This book was released on 2020-12-31 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of the well known Care and Repair of Advanced Composites, 3rd Edition, improves on the usefulness of this practical guide geared towards the aerospace industry. Keith B. Armstrong, the original lead author of the first edition was still in charge of this project, counting on the expert support of Eric Chesmar, senior composites specialist at United Airlines. Mr. Chesmar is also an active member of SAE International's CACRC (Commercial Aircraft Composite Repair Committee), an elite group of industry experts dedicated to the standardization, safety, security, and efficiency of composite repairs in the airline industry. Mr. Francois Museux (Airbus) and Mr. William F. Cole II also contributed. Care and Repair of Advanced Composites, 3rd Edition, presents a fully updated approach to the training syllabus recommended for repair design engineers and composite repair mechanics. Metal bonding has been included partly because the defi nition of "composite" can be interpreted to include metal-skinned honeycomb panels, and partly because some composite parts have metal fi ttings or reinforcements that must be treated before bonding. This third edition also covers a number of the problems experienced in service, some of which may be applicable to metallic sandwich panels, offers suggestions for design improvements, including repair design as a particular topic, and regulatory changes. Care and Repair of Advanced Composites, 3rd Edition, provides solid technical information and training for a wide range of airline staff.
Author : Keigo Iizuka
Publisher : Springer
ISBN 13 : 3319692518
Total Pages : 781 pages
Book Rating : 4.3/5 (196 download)
Download or read book Engineering Optics written by Keigo Iizuka and published by Springer. This book was released on 2019-04-30 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering Optics is a book for students who want to apply their knowledge of optics to engineering problems, as well as for engineering students who want to acquire the basic principles of optics. It covers such important topics as optical signal processing, holography, tomography, holographic radars, fiber optical communication, electro- and acousto-optic devices, and integrated optics (including optical bistability). Practical examples, such as the video disk, the Fresnel zone plate, and many more, appear throughout the text, together with numerous solved exercises. There is an entirely new section in this updated edition on 3-D imaging.
Author :
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.3/5 (243 download)
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michel Grediac
Publisher : John Wiley & Sons
ISBN 13 : 1118578473
Total Pages : 376 pages
Book Rating : 4.1/5 (185 download)
Download or read book Full-Field Measurements and Identification in Solid Mechanics written by Michel Grediac and published by John Wiley & Sons. This book was released on 2012-12-17 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book presents cutting-edge developments by experts in the field on the rapidly developing and scientifically challenging area of full-field measurement techniques used in solid mechanics – including photoelasticity, grid methods, deflectometry, holography, speckle interferometry and digital image correlation. The evaluation of strains and the use of the measurements in subsequent parameter identification techniques to determine material properties are also presented. Since parametric identification techniques require a close coupling of theoretical models and experimental measurements, the book focuses on specific modeling approaches that include finite element model updating, the equilibrium gap method, constitutive equation gap method, virtual field method and reciprocity gap method. In the latter part of the book, the authors discuss two particular applications of selected methods that are of special interest to many investigators: the analysis of localized phenomenon and connections between microstructure and constitutive laws. The final chapter highlights infrared measurements and their use in the mechanics of materials. Written and edited by knowledgeable scientists, experts in their fields, this book will be a valuable resource for all students, faculties and scientists seeking to expand their understanding of an important, growing research area
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 788 pages
Book Rating : 4.3/5 (91 download)
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
