Download or read book CUMULATIVE FATIGUE DAMAGE DUE TO SPECTRAL LOADING written by JOHN P. HARRIS, CHARLES LIPSON and published by . This book was released on 1964 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Spectrum Loading and Range pair Counting Method Effects on Cumulative Fatigue Damage written by John Scott Atkinson and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Spectrum Loading and Range Pair Counting Method Effects on Cumulative Fatigue Damage written by John Scott Atkinson (Jr) and published by . This book was released on 1977 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is a study of cumulative fatigue damage. Variations in cumulative fatigue damage resulting from block loading spectra and randomized cycle loading spectra are investigated. Fatigue damage results show the merit of counting load cycles using the range-pair counting method. complete FORTRAN computer program documentation enables this thesis to serve as a program user's manual. (Author).
Download or read book Effect of Load Spectrum Variables on Fatigue Crack Initiation and Propagation written by D. F. Bryan and published by ASTM International. This book was released on 1980 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A System for Estimating Cumulative Fatigue Damage by Using the Miner Rule Corrected for Residual Stress written by C. R. Smith and published by . This book was released on 1961 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the Miner rule for estimating cumulative damage is being used rather extensively in estimating service life, it is well known that such estimates can be off by several hundred percent. The largest contribution to these discrepancies is the residual stress acquired at concentrations at upper level loading. While this effect is usually beneficial, structures employing riveted connections usually suffer losses where highest loads do not exceed 30% of ultimate strength. This paper proposes using the Miner relationship in conjunction with S-N curves obtained after one application of a load equivalent to the highest load statistically probable in the first 10% of service life. Test data comparing the basic and modified methods are presented. An extension of this work would indicate that fatigue-life prediction for spectrum type loading can be based on single-load level tests. (Author).
Download or read book Fatigue Life Under Random Loading for Several Power Spectral Shapes written by Sherman A. Clevenson and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each of a number of aluminum-alloy test specimens was loaded by random forces at a constant root-mean-square stress level until rupture occurred. The forces were statistically stationary and Gaussian with a zero mean value. The fatigue life (to rupture) was determined for various values of the following statistical parameters: (a) root-mean-square nominal applied stress, (b) power spectral shape, (c) mean number of zero crossings per unit time, and (d) mean number of peak loads per unit time. The power spectra were varied over a passband of frequency for three spectral shapes either by holding the power constant with frequency or by varying it either directly or inversely proportional to the square of the frequency. The results indicate that the fatigue life was determined principally by the root-mean-square nominal applied stress level. The effects of spectral shape, average number of zero crossings, and average number of peak loads were insignificant in the ranges investigated. The fatigue life, based on the number of effective cycles, of the specimens under random loading was lower by at least an order of magnitude at all stress levels than that of the specimens loaded sinusoidally. A linear cumulative damage theory overestimated the fatigue life, especially at low stress levels. The fracture characteristics of the specimens which failed under random loading were similar to those which failed under sinusoidal loads.
Download or read book Cumulative Fatigue Damage with Sinusoidal Loading written by Babu K. Patel and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiaxial Fatigue written by Darrell Socie and published by SAE International. This book was released on 1999-12-15 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides practicing engineers, researchers, and students with a working knowledge of the fatigue design process and models under multiaxial states of stress and strain. Readers are introduced to the important considerations of multiaxial fatigue that differentiate it from uniaxial fatigue.
Download or read book Fatigue Damage written by Christi Lalanne and published by CRC Press. This book was released on 2002-03-29 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: About the Series: This important new series of five volumes has been written with both the professional engineers and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and crucially important areas of mechanical engineering, from both the theoretical and practical standpoints. As all products need to be designed to withstand the environmental conditions to which they are likely to be subjected, prototypes must be verified by calculation and laboratory tests, the latter according to specifications from national or international standards. The concept of tailoring the product to its environment has gradually developed whereby, from the very start of a design project, through the to the standards specifications and testing procedures on th e prototype, the real environment in which the product being tested will be functioning is taken into account. The five volumes of Mechanical Shock and Vibration cover all the issues that need to be addressed in this area of mechanical engineering. The theoretical analyses are placed in the context of the real world and of laboratory tests - essential for the development of specifications. Volume IV: Fatigue Damage Fatigue damage in a system with one degree of freedom is one of the two criteria applied when comparing the severity of vibratory environments. The same criterion is also employed for a specifciation representing the effects produced by the set of vibrations imposed in a real environment. In this volume, which is devoted to the calculation of fatigue damage, the author explores the hypotheses adopted to describe the behavior of material suffering fatigue and the laws of fatigue accumulation. He also considers the methods of counting the response peaks, which are used to establish the histogram when it is impossible to use the probability density of the peaks obtained with a Gaussian signal. The expressions for mean damage and its standard deviation are established and other hypotheses are tested.
Download or read book Reliability Abstracts and Technical Reviews written by and published by . This book was released on 1965 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Reliability Engineering written by Marvin L. Roush and published by RIAC. This book was released on 2006 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Business Involvement in Southern Africa written by United States. Congress. House. Committee on Foreign Affairs. Subcommittee on Africa and published by . This book was released on 1972 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Business Involvement in Southern Africa written by United States. Congress. House. Committee on Foreign Affairs and published by . This book was released on 1971 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearings written by United States. Congress. House. Committee on Foreign Affairs and published by . This book was released on 1971 with total page 1768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Techniques and Design in Composite Materials written by M.S. Found and published by Routledge. This book was released on 2017-11-22 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the revised versions of papers presented at the 4th Seminar on Experimental Techniques and Design in Composite Materials. The papers have been divided into five sections: fatigue, test methods, design, impact and modelling.
Download or read book Fatigue of Aircraft Structures written by United States. Naval Air Systems Command and published by . This book was released on 1966 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
