Download or read book Ultrasonic Measurements of Stress Within Materials written by B. J. Ratcliffe and published by . This book was released on 1969 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Materials Characterization written by Harold Berger and published by . This book was released on 1980 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of the Techniques Using Ultrasonic Waves for the Measurement of Stress Within Materials written by B. J. RATCLIFFE and published by . This book was released on 1969 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE VARIOUS PROCESSES USED TO DATE FOR MEASURING STRESSES WITHIN MATERIALS HAVE THEIR INDIVIDUAL LIMITATIONS WITH RESPECT TO THE INFORMATION THEY CAN PROVIDE. THE DETERMINATION OF STRESS USING ULTRASONICS IS POSSIBLE BECAUSE OF THE PHENOMENON KNOWN AS ACOUSTOELASTICITY. THIS PAPER IS A SURVEY OF THE EXTENT TO WHICH WORK HAS PROGRESSED USING THIS EFFECT DURING THE LAST DECADE.
Download or read book Stress Analysis Utilizing Ultrasonic Techniques written by Robert W. Benson and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of techniques utilizing transverse ultrasonic waves to measure stress within materials was given. It was established that the method measures stress rather than strain in materials. The stress measuring technique was used to obtain dynamic stress-strain characteristics of materials in conjunction with standard methods of measuring strain. Measurements were performed on a variety of materials including Al, steel and brass, at a frequency of 14,000 cps. Certain similarities between magnetic and mechanical behavior of materials were discussed. (Author).
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 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 2021 IEEE International Conference on Power Electronics Computer Applications ICPECA written by IEEE Staff and published by . This book was released on 2021-01-22 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 2021 IEEE International Conference on Power, Electronics and Computer Applications (ICPECA 2021) will take place in Shenyang, China, on January 22 24, 2021 ICPECA 2021 seeks to provide a high level forum for experts, researchers, professionals, innovators and practitioners in the field of Power, Electronics and Computer Applications from industry and academia to present and discuss the wide spectrum of original and novel researches and contributions together
Download or read book Materials Characterization for Systems Performance and Reliability written by James W. McCauley and published by Springer Science & Business Media. This book was released on 2013-03-13 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sagamore Army Materials Research Conferences have been held in the beautiful Adirondack Mountains of New York State since 1954. Organized and conducted by the Army Materials and Mechanics Research Center (Watertown, Massachusetts) in cooperation with Syracuse University, the Conferences have focused on key issues in Materials Science and Engineering that impact directly on current or future Army problem areas. A select group of speakers and attendees are assembled from academia, industry, and other parts of the Department of Defense and Government to provide an optimum forum for a full dialogue on the selected topic. This book is a collection of the full manuscripts of the formal presentations given at the Conference. The emergence and use of nontraditional materials and the excessive failures and reject rates of high technology, materials intensive engineering systems necessitates a new approach to quality control. Thus, the theme of this year's Thirty-First Conference, "Materials Characterization for Systems Performance and Reliability," was selected to focus on the need and mechanisms to transition from defect interrogation of materials after production to utilization of materials characterization during manufacturing. The guidance and help of the steering committee and the dedicated and conscientious efforts of Ms. Karen Ka100stian, Con ference Coordinator, and Mr. William K. Wilson, and Ms. Mary Ann Holmquist are gratefully acknowledged. The continued active interest and support of Dr. Edward S. Wright, Director, AMMRC; Dr. Robert W. Lewis, Associate Director, AMMRC; and COL L. C. Ross, Commander/ Deputy Director, AMMRC; are greatly appreciated.
Download or read book Ultrasonic Materials Characterization written by Harold Berger and published by . This book was released on 1980 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ultrasonic Technique for the Measurement of Residual Stress written by PJ. Noronha and published by . This book was released on 1975 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ultrasonic shear wave technique to measure stress in metals is described. The technique utilizes a pulse-echo system operating at 7 MHz to measure changes in the time of travel of the ultrasonic shear wave to 1 part per million. Linear changes in the velocity of a shear wave occur with stress and are dependent on the higher order elastic constants of the material. The linear change in velocity with stress allows the definition of a constant called the stress acoustic constant for the material. The amount of birefringence in a specimen is measured, and after accounting for the portion caused by anisotropy of the material, the remainder gives an accurate measure of the residual stress in the material. The amount of birefringence caused by anisotropy is a constant for specimens having the same nominal mechanical and thermal treatments. Measurements using the ultrasonic technique of simulated residual stress, introduced by bending of a 6-ft (1.8-m) section of A-36 steel I-beam, yielded values in the vicinity of those measured using strain gage and O-ring techniques. Application of this technique to the measurement of other simple states of stress is suggested, along with the precautions to be observed for measuring stress.
Download or read book Dynamic Elastic Modulus Measurements in Materials written by Alan Wolfenden and published by ASTM International. This book was released on 1990 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Ultrasonics in Materials Research and Testing written by and published by . This book was released on 1986 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Techniques for Fluids Characterization written by Malcolm J.W. Povey and published by Academic Press. This book was released on 1997-07-22 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive and practical guide to the use of ultrasonic techniques for the characterization of fluids. Focusing on ultrasonic velocimetry, the author covers the basic topics and techniques necessaryfor successful ultrasound measurements on emulsions, dispersions, multiphase media, and viscoelastic/viscoplastic materials. Advanced techniques such as scattering, particle sizing, and automation are also presented. As a handbook for industrial and scientific use, Ultrasonic Techniques for Fluids Characterization is an indispensable guide to chemists and chemical engineers using ultrasound for research or process monitoring in the chemical, food processing, pharmaceutical, cosmetic, biotechnology,and fuels industries. Appeals to anyone using ultrasound to study fluids Provides the first detailed description of the ultrasound profiling technique for dispersions Describes new techniques for measuring phase transitions and nucleation, such as water/ice and oil/fat Presents the latest ultrasound techniques for particle sizing in concentrated systems Explains new techniques for compressibility measurements in dispersions and fluids, including cell suspensions Contains a detailed treatment of ultrasound scattering theory Written by one of the leading researchers in the field Includes over 350 references to the primary literature
Download or read book Ultrasonic and Advanced Methods for Nondestructive Testing and Material Characterization written by Chi-hau Chen and published by World Scientific. This book was released on 2007 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic methods have been very popular in nondestructive testing and characterization of materials. This book deals with both industrial ultrasound and medical ultrasound. The advantages of ultrasound include flexibility, low cost, in-line operation, and providing data in both signal and image formats for further analysis. The book devotes 11 chapters to ultrasonic methods. However, ultrasonic methods can be much less effective with some applications. So the book also has 14 chapters catering to other or advanced methods for nondestructive testing or material characterization. Topics like structural health monitoring, Terahertz methods, X-ray and thermography methods are presented. Besides different sensors for nondestructive testing, the book places much emphasis on signal/image processing and pattern recognition of the signals acquired.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Ultrasonic Nondestructive Evaluation written by Tribikram Kundu and published by CRC Press. This book was released on 2003-12-29 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most books on ultrasonic nondestructive evaluation (NDE) focus either on its theoretical background or on advanced applications. Furthermore, information on the most current applications, such as guided wave techniques and acoustic microscopy, is scattered throughout various conference proceedings and journals. No one book has integrated these aspe
Download or read book Ultrasonic Methods for Nondestructive Measurement of Residual Stress written by Fred Rollins and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shear wave birefringence in metal specimens has been studied as a possible method of nondestructively measuring residual stresses. It was established that the stress-induced birefringence in Al and steel varies linearly with the magnitude of an applied stress and does not change appreciably as these metals are deformed plastically. Other sources of birefringence were studied also. Preferred orientation is a major source especially in rolled metal stock. A pulse echo technique for observing shear wave birefringence is described and the current limitations are discussed. (Author).
