Download or read book Ultrasonic Measurement of Axial Stress written by JS. Heyman and published by . This book was released on 1982 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several applications of ultrasonic techniques are gaining acceptance for accurate preload determination of critical fasteners. In this presentation, one class of techniques based on continuous wave ultrasonics is examined in detail, with benefits and limitations discussed as they apply to accurate determination of fastener preload. The theory of acoustic propagation in strained media is reviewed as it applies to bolt geometries. Propagation measurements in these geometrics require an understanding of guided-wave effects which can influence stress determination. However, studies of the acoustic spectra of rods identify diffraction and resulting mode conversion as the main artifact for such a measurement. The acoustic spectra, obtained with a novel tone burst spectroscopy method, clearly show mode conversion effects at low frequencies to be absent at high frequencies.

Download or read book An Ultrasonic Method for Determining Axial Stress in Bolts written by GC. Johnson and published by . This book was released on 1986 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ultrasonic technique for determining the axial stress within a bolt was developed and experimentally verified. The technique uses time-of-flight measurements of both shear and longitudinal waves propagating along the axis of a bolt along with the material parameters to calculate the stress acting on the bolt. One significant advantage of the technique is that an independent measurement of neither the original nor present length is required. Experimental results suggest that the method may be usable for fasteners which have experienced a small amount of plastic deformation.

Download or read book Proceedings of AF SD Industry NASA Conference and Workshops on Mission Assurance written by and published by . This book was released on 1984 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultrasonic Measurement Methods written by and published by Elsevier. This book was released on 2012-12-02 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic Measurement Methods describes methods used in ultrasonic measurements and covers topics ranging from radiated fields of ultrasonic transducers to the measurement of ultrasonic velocity and ultrasonic attenuation, along with the physical principles of measurements with electromagnetic-acoustic transducers (EMATs). Optical detection of ultrasound and measurement of the electrical characteristics of piezoelectric devices are also examined. Comprised of seven chapters, this volume begins with an analysis of the radiated fields of ultrasonic transducers, followed by a discussion on the measurement of ultrasonic velocity and attenuation. The next chapter describes the physical principles of measurement with EMATs and the advantages of such devices based on their couplant-free operation. Optical detection of ultrasound is then considered, together with the problem of measuring the electrical characteristics of piezoelectric resonators and standard methods for obtaining the equivalent electrical parameter values. The final chapter is devoted to ultrasonic pulse scattering in solids and highlights many fascinating examples of wave scattering, some of which are accompanied by theoretical analysis. This book will be of interest to physicists.

Download or read book Ultrasonic Measurement of Stress induced Mechanical Resonance Shifts in Bolts written by David Lyle Herndon and published by . This book was released on 1978 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural and Residual Stress Analysis by Nondestructive Methods written by V. Hauk and published by Elsevier. This book was released on 1997-11-10 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of stress analysis has gained its momentum from the widespread applications in industry and technology and has now become an important part of materials science. Various destructive as well as nondestructive methods have been developed for the determination of stresses. This timely book provides a comprehensive review of the nondestructive techniques for strain evaluation written by experts in their respective fields.The main part of the book deals with X-ray stress analysis (XSA), focussing on measurement and evaluation methods which can help to solve the problems of today, the numerous applications of metallic, polymeric and ceramic materials as well as of thin-film-substrate composites and of advanced microcomponents. Furthermore it contains data, results, hints and recommendations that are valuable to laboratories for the certification and accreditation of their stress analysis.Stress analysis is an active field in which many questions remain unsettled. Accordingly, unsolved problems and conflicting results are discussed as well. The assessment of the experimentally determined residual and structural stress states on the static and dynamic behavior of materials and components is handled in a separate chapter.Students and engineers of materials science and scientists working in laboratories and industries will find this book invaluable.

Download or read book EMATs for Science and Industry written by Masahiko Hirao and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: EMATs for Science and Industry comprises the physical principles of electromagnetic acoustic transducers (EMATs) and the applications to scientific and industrial ultrasonic measurements on materials. The text is arranged in four parts: -PART I is intended to be a self-contained description of the basic elements of coupling mechanism along with practical designing of EMATs for various purposes. There are several implementations to compensate for the low transfer efficiency of the EMATs. Useful tips to make an EMAT are also presented. -PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of contactless nature of EMATs and is the most successful amplification mechanism for precise velocity and attenuation measurements. -PART III applies EMAR to studying the physical acoustics. New measurements emerged on three major subjects; in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, and acoustic nonlinearity evolution. -PART IV deals with a variety of individual topics encountered in industrial applications, for which the EMATs are believed to the best solutions.

Download or read book Proceedings of the First International Conference on Aeronautical Sciences Engineering and Technology written by Abid Ali Khan and published by Springer Nature. This book was released on 2024-01-26 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains forty-one revised and extended research articles, written by prominent researchers participating in the International Conference on Aeronautical Sciences, Engineering and Technology 2023, held in Muscat, October 3-5 2023. It focuses on the latest research developments in aeronautical applications, avionics systems, advanced aerodynamics, atmospheric chemistry, emerging technologies, safety management, unmanned aerial vehicles, and industrial applications. This book offers the state of the art of notable advances in engineering technologies and aviation applications and serves as an excellent source of reference for researchers and graduate students.

Download or read book Fundamentals of Ultrasonic Testing written by Chunguang Xu and published by CRC Press. This book was released on 2024-08-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on the theory and state-of-the-art technologies of ultrasonic testing (UT), this book examines ultrasonic propagation in solids and its detection applications, and explores the intersection of UT technology with various fields of electromagnetics, optics and physics. UT is one of the most widely used nondestructive testing techniques due to its high performance in terms of detection efficiency and safety. The rapid development of modern industrial products and technologies has created a new challenge and demand for ultrasonic nondestructive testing technology. This book introduces the fundamentals of UT, including sound wave and sound field, interface wave theory and liquid-solid coupled sound field. It then discusses various types of UT methods, ranging from the critically refracted longitudinal wave method to ultrasonic surface wave and ultrasonic guided wave detection methods. Some newly developed UT techniques are also discussed, including phased-array UT, high-frequency UT and non-contact UT. This title will appeal to engineering students and technicians in the field of ultrasonic nondestructive testing.

Download or read book Evaluation of Ultrasonic Measurement Systems for Bolt Load Determinations written by Stephen C. Tadolini and published by [Washington, D.C.] : U.S. Department of the Interior, Bureau of Mines. This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultrasonic Measurement of Residual Stress in Textured Materials written by A. Arora and published by . This book was released on 1982 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method is developed that determines the state of stress in a test piece in the presence of texture, that is, preferred grain orientation. This method uses frequency domain analysis of the acoustic birefringence by which an ultrasonic shear wave propagating in a material travels at slightly different velocities in the polarizations parallel and perpendicular to the axes of texture or stress. Results obtained from a Ti-6%Al-4%V block confirm that the velocity shift is linearly dependent on the amount of stress, but is independent of frequency in the case of stress as opposed to the texture. Experimental considerations involving transducer characteristics, bond (transducer to specimen) characteristics, specimen size, and signal processing are discussed in relation to the reliability and repeatability of the data.

Download or read book Ultrasonic Measurement of Stresses written by Kwang Su Choe and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Materials Characterization Using Nondestructive Evaluation NDE Methods written by Gerhard Huebschen and published by Woodhead Publishing. This book was released on 2016-03-23 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Characterization Using Nondestructive Evaluation (NDE) Methods discusses NDT methods and how they are highly desirable for both long-term monitoring and short-term assessment of materials, providing crucial early warning that the fatigue life of a material has elapsed, thus helping to prevent service failures. Materials Characterization Using Nondestructive Evaluation (NDE) Methods gives an overview of established and new NDT techniques for the characterization of materials, with a focus on materials used in the automotive, aerospace, power plants, and infrastructure construction industries. Each chapter focuses on a different NDT technique and indicates the potential of the method by selected examples of applications. Methods covered include scanning and transmission electron microscopy, X-ray microtomography and diffraction, ultrasonic, electromagnetic, microwave, and hybrid techniques. The authors review both the determination of microstructure properties, including phase content and grain size, and the determination of mechanical properties, such as hardness, toughness, yield strength, texture, and residual stress. - Gives an overview of established and new NDT techniques, including scanning and transmission electron microscopy, X-ray microtomography and diffraction, ultrasonic, electromagnetic, microwave, and hybrid techniques - Reviews the determination of microstructural and mechanical properties - Focuses on materials used in the automotive, aerospace, power plants, and infrastructure construction industries - Serves as a highly desirable resource for both long-term monitoring and short-term assessment of materials

Download or read book Proceedings of the 1st International Conference on New Materials Machinery and Vehicle Engineering written by J. Xu and published by IOS Press. This book was released on 2022-05-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: New materials are constantly being developed which may improve or transform many aspects of our lives, and nowhere is this more exciting than in the fields of vehicle and machinery technology. This book presents the proceedings of the 2022 International Conference on New Materials, Machinery and Vehicle Engineering (NMMVE 2022), held as a virtual event due to the COVID-19 pandemic and travel restrictions, from 18 - 20 March 2022. NMMVE 2022 provides an international forum for researchers and engineers to present and discuss recent advances, new techniques, and applications in the fields of new materials, machinery and vehicle engineering, and attracts academics, scientists, engineers, postgraduates, and other professionals from a wide range of universities and institutions. A total of 121 submissions were received, from which 48 were accepted for inclusion in the conference and proceeding after a rigorous, standard single-blind reviewing process. The papers are grouped into 3 sections: machinery (30 papers); new materials (11 papers); and vehicle engineering (7 papers). Providing an overview of the latest developments in these fields, the book will be of interest to all those wishing to know more about new materials and machine and vehicle engineering.

Download or read book Handbook of Acoustics written by Malcolm J. Crocker and published by John Wiley & Sons. This book was released on 1998-03-09 with total page 1494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acoustical engineers, researchers, architects, and designers need a comprehensive, single-volume reference that provides quick and convenient access to important information, answers and questions on a broad spectrum of topics, and helps solve the toughest problems in acoustical design and engineering. The Handbook of Acoustics meets that need. It offers concise coverage of the science and engineering of acoustics and vibration. In more than 100 clearly written chapters, experts from around the world share their knowledge and expertise in topics ranging from basic aerodynamics and jet noise to acoustical signal processing, and from the interaction of fluid motion and sound to infrasound, ultrasonics, and quantum acoustics. Topics covered include: * General linear acoustics * Nonlinear acoustics and cavitation * Aeroacoustics and atmospheric sound * Mechanical vibrations and shock * Statistical methods in acoustics * Architectural acoustics * Physiological acoustics * Underwater sound * Ultrasonics, quantum acoustics, and physical aspects of sound * Noise: its effects and control * Acoustical signal processing * Psychological acoustics * Speech communication * Music and musical acoustics * Acoustical measurements and instrumentation * Transducers The Handbook of Acoustics belongs on the reference shelf of every engineer, architect, research scientist, or designer with a professional interest in the propagation, control, transmission, and effects of sound.

Download or read book Proceedings of China SAE Congress 2023 Selected Papers written by China Society of Automotive Engineers and published by Springer Nature. This book was released on with total page 1601 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultrasonic Measurement of Stress Using Backscattered Ultrasound written by Mohamed Pauzi bin Ismail and published by . This book was released on 1981 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: