Download or read book ULTRASONIC FATIGUE TESTING written by S. TANAKA 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 Fatigue Testing written by Graham M. Chapman and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Fatigue written by Joseph M. Wells and published by . This book was released on 1982 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Method for Ultrasonic Fatigue Testing written by C. H. Green and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Method for Ultrasonic Fatigue Testing of Specimins Much Shorter Than Their Half Wave Length written by Colin H. Green and published by . This book was released on 1975 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Fatigue Testing of Thin walled Stainless Steel Tubes written by B. WEISS and published by . This book was released on 1970 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Fatigue Testing of Ti 6Al 4V written by RJ. Morrissey and published by . This book was released on 2005 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to investigate the high cycle fatigue behavior of a titanium alloy using an ultrasonic fatigue system. Fatigue testing up to one billion cycles under fully reversed loading conditions was performed to determine the ultra-high cycle fatigue behavior of Ti-6Al-4V. Endurance limit results were compared to similar data generated on conventional servohydraulic test systems and electromagnetic shaker systems to determine if there are any frequency effects. In addition, specimens were tested with and without cooling air to determine the effects of temperature on the fatigue behavior. Results indicate that the fatigue strength determined from ultrasonic testing was consistent with conventional testing. However, preliminary results indicate that cooling air may increase the fatigue limit stress at very long lives.
Download or read book Gigacycle Fatigue in Mechanical Practice written by Claude Bathias and published by CRC Press. This book was released on 2004-09-13 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by pioneers in the study and analysis of very high cycle fatigue this text brings together the most recent findings on gigacycle fatigue phenomena, focusing on improving the reliability and performance of key engine and machine components. This reference reflects the explosion of new concepts, testing methods, and data on very high cycle fa
Download or read book An Automatic Ultrasonic Fatigue Testing System for Studying Low Crack Growth at Room and High Temperatures written by C. Bathias and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, an automatic ultrasonic fatigue testing system is presented, including a computer control and acquisition system, a video-camera-television system, an induction heating device, a magneto-strictive vibrator, and other electronic apparatus. The test machine controlled by an IBM PS/2 computer with analog to digital (A/D) and digital to analog (D/A) convertors runs at a very high frequency, about 20 kHz, and it carries out endurance tests and crack growth tests at room or high temperature. In this paper, a S-Ncurve for UDIMET 500 at room temperature and two fatigue crack growth rate (FCGR) curves in near-threshold regime for ASTROLOY at 20 and 400°C under ultrasonic fatigue testing are published.
Download or read book Application of Ultrasonic Fatigue Testing Techniques to the Evaluation of the Corrosion Fatigue Strength of Materials written by LD. Roth and published by . This book was released on 1984 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A corrosion fatigue testing system has been developed for examining the corrosion-fatigue strength of engineering materials in the very high cycle regime (109 to 1010 cycles) typical of many design lifetimes. Central to this resonant fatigue testing system is a high efficiency, large displacement, piezoelectric transducer which operates at a frequency of 20 kHz, thus enabling the accumulation of large numbers of cycles in a reasonable amount of time. A description of apparatus, environmental controls, and testing method is presented. Experimental 20 kHz and low frequency corrosion fatigue results for a number of engineering materials, including a 12% chromium stainless steel, show similar reductions in fatigue limit at a specified number of cycles, despite the difference in frequency. This result holds for a variety of aqueous environments with and without electrochemical controls imposed during testing. The data illustrate the capabilities of the ultrasonic corrosion-fatigue technique and are analyzed to assess its advantages and limitations.
Download or read book Dynamic Stress Intensity Factors for Ultrasonic Fatigue Test Specimens written by Anders F. Blom and published by . This book was released on 1984 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonic Microscale Fatigue Testing written by Tinger Wen and published by . This book was released on 2017 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Fatigue Testing written by S. Roy Swanson and published by ASTM International. This book was released on 1974 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue of Materials at Very High Numbers of Loading Cycles written by Hans-Jürgen Christ and published by Springer Spektrum. This book was released on 2018-12-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the final reports of the scientific projects funded within the DFG-SPP1466 and, hence, provides the reader with the possibility to familiarize with the leading edge of VHCF research. It draws a balance on the existing knowledge and its enhancement by the joint research action of the priority program. Three different material classes are dealt with: structural metallic materials, long-fiber-reinforced polymers and materials used in micro-electro-mechanical systems. The project topics address the development of suitable experimental techniques for high-frequency testing and damage monitoring, the characterization of damage mechanisms and damage evolution, the development of mechanism-based models and the transfer of the obtained knowledge and understanding into engineering regulations and applications.
Download or read book Determination of Fatigue Limit Between 105 and 109 Cycles Using an Ultrasonic Fatigue Device written by C. Bathias and published by . This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-power ultrasound was used to study fatigue behavior of three alloys (Udimet 500, 17-4PH, and Ti-6A1-4V) since the loading frequency is very high (f = 20 kHz) and a great number of cycles can be obtained in a short time. The specimens were excited in resonance at the first longitudinal mode in such a way that maximum strain occurred in the middle and maximum displacement amplitude was obtained at the end of the specimen. Fatigue life behavior of the three alloys were investigated at ultrasonic (/ = 20 kHz) and conventional loading frequency (f = 20 to 50 Hz). Miniature dynamic strain gages were employed to measure maximum strain values during ultrasonic fatigue tests. The effect of high strain rate on fatigue crack initiation and propagation failure mechanism was examined. Fracture surface of specimens was observed by means of a scanning electron microscope. Fatigue resistance was found to depend upon ultrasonic and mechanical characteristics and microstructure of the material, loading regime, and surface condition of the specimen.
Download or read book Development of Ultrasonic Torsional Fatigue Tester to Evaluate Rolling Bearing Steels written by Y. Shimamura and published by . This book was released on 2012 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: In rolling bearings, subsurface flaking failures occur under pure rolling contact fatigue conditions. In such failures, one of the crack initiation and its subsequent initial extention factors is believed to be the results of repetitive orthogonal shear stress. Accordingly, we have deemed that it is of critical importance to evaluate the shear fatigue properties, which can be obtained by torsional fatigue testing. However, up until now, it has been all but impossible to establish the shear fatigue properties of giga-cycle regimes because of conventional low loading frequency torsional fatigue testers. This is due primarily to time constraints. By contrast, ultrasonic fatigue testing is employed to assure high loading speeds. Ultrasonic tension-compression testers have been commercially available for more than a decade, and many data are being accumulated. However, there have been scant few investigations into ultrasonic torsional fatigue testing, and as such these limited to only a few low output-type converters of torsional vibration. With these considerations in mind, we have developed an ultrasonic torsional fatigue tester which enables for the rapid evaluation of shear fatigue properties. A loading frequency of 20 000 Hz is quite high, and as such results in a radical reduction of testing duration. It is possible to produce maximum shear stress amplitudes of about 950 MPa at the surface of specimen's minimum diameter. This is sufficient for the evaluation of high strength rolling bearing steels over wide ranges of loading cycles. For example, when loading cycles of 1010 are applied, the ultrasonic torsional fatigue tester requires only about seven days for complete testing, as compared with conventional testers at a loading frequency of about 10 Hz, would require more than 32 years.
Download or read book Manual on Low Cycle Fatigue Testing written by American Society for Testing Materials and published by ASTM International. This book was released on 1969 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
