Download or read book ULTRASONIC STRESS ANALYSIS written by W. BENSON and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Residual Stress Analysis written by P. Mahadevan and published by . This book was released on 1969 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Stress Analysis by Ultrasonic Spectroscopy written by John Joseph Blinka and published by . This book was released on 1977 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis Design and Test of a Passive Ultrasonic Stress Sensor written by Frederik Majkut and published by . This book was released on 1999 with total page 182 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 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 Residual Stress Measurement and Analysis Using Ultrasonic Techniques written by P. J. Noronha and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Residual Stress Measurement and Analysis Using Ultrasonic Techniques written by P. J. NORONHA and published by . This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Aided Analysis for Residual Stress Measurement Using Ultrasonic Techniques written by Jagan Mohan Kypa and published by . This book was released on 1999 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Stress Measurement for Evaluating the Adequacy of Gusset Plates written by Jason Paul Klemme and published by . This book was released on 2012 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: A significant challenge in determining the safety margin for gusset plates is determining the level of stresses carried in the plate. Present technologies are unable to evaluate the dead, live and residual stresses maintained in gusset plates. The goal of the research presented in this thesis is to improve the safety of highway bridges by developing and testing an ultrasonic stress measurement methodology for determining actual stress in steel gusset plates, evaluating the accuracy and precision of the measurements, and assess if the methodology has sufficient accuracy and precision to be a useful tool in the safety analysis of gusset plates. This research utilizes the acoustoelastic effect to evaluate actual stress levels by assessing the acoustic birefringence in a steel material. The birefringence measurement evaluates normalized variations of polarized shear waves propagating through the plate thickness, which vary proportionally as a function of stress. This thesis discusses exploratory testing to evaluate the potential of the approach as a tool for the condition assessment of gusset plates.
Download or read book Applied Stress Analysis written by T.H. Hyde and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume records the proceedings of an international conference organised as a tribute to the contribution made by Professor H. Fessler over the whole of his pro fessionallife, in the field of applied stress analysis. The conference, held at the Univer sity of Nottingham on 30 and 31 August 1990, was timed to coincide with the date of his formal retirement from the post of Professor of Experimental Stress Analysis in the University. The idea grew from discussions between some of Professor Fessler's academic associates from Nottingham and elsewhere. An organising committee was set up, and it was decided to invite contributions to the conference in the form of review papers and original research papers in the field of experimental, theoretical and computational stress analysis. The size of the response, both in papers submitted and in attendance at the conference, indicates that the idea proved attractive to many of his peers, former associates and research students. A bound copy of the volume is to be presented to Professor Fessler at the conference dinner on 30 August 1990.
Download or read book Evaluation of Sub Surface Residual Stress by Ultrasonic Method and Finite Element Analysis of Welding Process in a Monel Pressure Vessel written by Yashar Javadi and published by . This book was released on 2016 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welding of nickel-based alloys is increasingly used in the industry to manufacture various important structures in the marine industries, chemical processing, etc. This study investigates evaluation of sub-surface residual stresses, which are produced by the welding process in a pressure vessel made from Monel 400 alloy. The residual stresses are experimentally measured by ultrasonic method in which longitudinal critically refracted (LCR) waves are propagated inside the specimen to evaluate the effect of stress on the wave velocity. Any difference in the wave velocity could be transformed to the material stress by using acoustoelasticity relations. A nondestructive hydro-test process is used to measure the acoustoelastic constant, which is an important material property needed to be embedded in the acoustoelasticity relations. By using a different frequency range than the ultrasonic transducers, the LCR wave penetrates in different depths of the specimen to measure the sub-surface stresses. The welding processes are also numerically analyzed by a 3D thermo-mechanical finite-element (FE) model, which is validated by hole-drilling stress-measurement method. The residual stresses calculated by FE simulation are then compared with those obtained from the ultrasonic stress measurement and an acceptable agreement is achieved. It is demonstrated that the sub-surface residual stresses of the Monel pressure vessel could be accurately evaluated by combination of the FE simulation and stress measurement implemented by the LCR waves.
Download or read book Stress Analysis of Ultrasonic Density Detector for LOFT Core Inlet Steady state and LOCE Conditions Supplement 1 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The UDD sensor bar with modified cross-section (0.0938-in. thick by 0.25-in. high overall) was analyzed to determine its resonant frequencies. Thermal and fluid-induced stresses due to steady-state and LOCE loads were also calculated. The sensor bar was shown not to be subject to vortex-shedding lock-in and was shown to meet applicable criteria of the ASME Boiler and Pressure Vessel Code. Seismic loads are insignificant compared to fluid loads.
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 Nondestructive Testing of Materials written by Karl-Jörg Langenberg and published by CRC Press. This book was released on 2012-02-22 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features a comprehensive discussion of the mathematical foundations of ultrasonic nondestructive testing of materials. The authors include a brief description of the theory of acoustic and electromagnetic fields to underline the similarities and differences with respect to elastodynamics. They also cover vector, elastic plane, and Rayleigh surface waves as well as ultrasonic beams, inverse scattering, and ultrasonic nondestructive imaging. A coordinate-free notation system is used that is easier to understand and navigate than standard index notation.
Download or read book Fundamentals of Ultrasonic Nondestructive Evaluation written by Lester W. Schmerr Jr. and published by Springer. This book was released on 2013-06-14 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasound is currently used in a wide spectrum of applications ranging from medical imaging to metal cutting. This book is about using ultrasound in nondestructive evaluation (NDE) inspections. Ultrasonic NDE uses high-frequency acoustic/elastic waves to evaluate components without affecting their integrity or performance. This technique is commonly used in industry (particularly in aerospace and nuclear power) to inspect safety-critical parts for flaws during in-service use. Other important uses of ultrasonic NDE involve process control functions during manufacturing and fundamental materials characterization studies. It is not difficult to set up an ultrasonic NDE measurement system to launch waves into a component and monitor the waves received from defects, such as cracks, even when those defects are deep within the component. It is difficult however to interpret quantitatively the signals received in such an ultrasonic NDE measurement process. For example based on the ultrasonic signal received from a crack, what is the size, shape, and orientation of the crack producing the signal? Answering such questions requires evaluation procedures based on a detailed knowledge of the physics of the entire ultrasonic measurement process. One approach to obtaining such knowledge is to couple quantitative experiments closely with detailed models of the entire ultrasonic measurement system itself. We refer to such models here as ultrasonic NDE measurement models. In other areas of engineering, models have revolutionized how engineering is practiced. A classic example is the impact of the finite-element method on elastic stress analysis.
Download or read book Ultrasonic Imaging of Internal Stress in Metals written by Michael S. Toth and published by . This book was released on 1986 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
