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Author : Don Hollinger
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (366 download)
Download or read book Accelerated Fatigue-testing Improvements written by Don Hollinger and published by . This book was released on 1973 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Prafulla Kumar Das
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (89 download)
Download or read book A Study of Accelerated Fatigue Testing written by Prafulla Kumar Das and published by . This book was released on 1963 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. M. Carse
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (365 download)
Download or read book Accelerated Fatigue Testing written by A. M. Carse and published by . This book was released on 1972 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Weibull
Publisher : Elsevier
ISBN 13 : 1483154165
Total Pages : 322 pages
Book Rating : 4.4/5 (831 download)
Download or read book Fatigue Testing and Analysis of Results written by W. Weibull and published by Elsevier. This book was released on 2013-10-22 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Testing and Analysis of Results discusses fundamental concepts of fatigue testing and results analysis. The book begins with a description of the symbols and nomenclature selected for the present book, mainly those proposed by the ASTM Committee E-9 on Fatigue. Fatigue testing methods are then discussed including routine tests, short-life and long-life tests, cumulative-damage tests, and abbreviated and accelerated tests. Separate chapters cover fatigue testing machines and equipment; instruments and measuring devices; and test pieces used in fatigue testing. The factors affecting test results are considered, including material, types of stressing, test machine, environment, and testing technique. The final two chapters cover the planning of test programs and the presentation of results. Test program planning involves the statistical design of a test series; specification and sampling of test pieces; and choice of test pieces, testing machines, and test conditions. The chief purpose of most fatigue tests is the experimental determination of the relation between the endurance and the magnitude of the applied stress range for the material and the specimen under consideration, and final results can be condensed into a table, graph, or analytical expression.
Author : Moisés Jiménez
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)
Download or read book Accelerated Fatigue Test in Mechanical Components written by Moisés Jiménez and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The reduced time available for product development has forced original equipment manufacturers and their suppliers to develop new components and subsystems efficiently, to release it to the market with lightweight and innovate designs, guaranteeing non-failure on the service life. In order to reach these goals, accelerated tests are developed to evaluate its durability with different design proposals. Although durability is nowadays improved through virtual testing, it is mandatory to perform experimental tests before the final release of the product. The tests are done not only to reproduce the same loads; it has to be modified to reproduce the failures that are found on the roads under normal use conditions. The component can be evaluated as itself, in subassembly or in the assembly; the result among these possibilities have to be the same. To reach this aim, devices are designed to reproduce a specific stiffness, combining its mechanical behavior with the modified loads also known as spectrum. Accelerated test can be developed to increase its severity, reducing test time. The spectrum to perform the durability test was built with service loads and different profiles or users and different roads including weather conditions.
Author : Ming Liu
Publisher :
ISBN 13 :
Total Pages : 246 pages
Book Rating : 4.:/5 (55 download)
Download or read book On an Accelerated Fatigue-testing Technique Using Piezoelectric Actuators written by Ming Liu and published by . This book was released on 2003 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V. M. Grebenik
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Accelerated Method of Fatigue Testing and Parameters of Fatigue Curves written by V. M. Grebenik and published by . This book was released on 1973 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The article presents a method of accelerated fatigue testing. Data are presented which make it possible to significantly reduce the number of fatigue tests and to approach more correctly the construction of fatigue curves. These accelerated methods of fatigue testing may be developed on the basis of establishing dependencies between fatigue curves and other properties or mechanical characteristics of metals. This method is based on the hypothesis of the energy similarity of fatigue destruction and the melting of metals.
Author : Yung-Li Lee
Publisher : Elsevier
ISBN 13 : 0080477690
Total Pages : 417 pages
Book Rating : 4.0/5 (84 download)
Download or read book Fatigue Testing and Analysis written by Yung-Li Lee and published by Elsevier. This book was released on 2011-04-18 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Testing and Analysis: Theory and Practice presents the latest, proven techniques for fatigue data acquisition, data analysis, and test planning and practice. More specifically, it covers the most comprehensive methods to capture the component load, to characterize the scatter of product fatigue resistance and loading, to perform the fatigue damage assessment of a product, and to develop an accelerated life test plan for reliability target demonstration. This book is most useful for test and design engineers in the ground vehicle industry. Fatigue Testing and Analysis introduces the methods to account for variability of loads and statistical fatigue properties that are useful for further probabilistic fatigue analysis. The text incorporates and demonstrates approaches that account for randomness of loading and materials, and covers the applications and demonstrations of both linear and double-linear damage rules. The reader will benefit from summaries of load transducer designs and data acquisition techniques, applications of both linear and non-linear damage rules and methods, and techniques to determine the statistical fatigue properties for the nominal stress-life and the local strain-life methods. Covers the useful techniques for component load measurement and data acquisition, fatigue properties determination, fatigue analysis, and accelerated life test criteria development, and, most importantly, test plans for reliability demonstrations Written from a practical point of view, based on the authors' industrial and academic experience in automotive engineering design Extensive practical examples are used to illustrate the main concepts in all chapters
Author : Lev M. Klyatis
Publisher : Academic Press
ISBN 13 : 0128188413
Total Pages : 358 pages
Book Rating : 4.1/5 (281 download)
Download or read book Trends in Development of Accelerated Testing for Automotive and Aerospace Engineering written by Lev M. Klyatis and published by Academic Press. This book was released on 2020-05-01 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated testing (most types of laboratory testing, proving ground testing, intensive field/flight testing, any experimental research) is increasingly a key component for predicting of product's/process performance. Trends in Development Accelerated Testing for Automotive and Aerospace Engineering provides a completely updated analysis of the current status of accelerated testing, including the basic general directions of testing (methods and equipment) development, how one needs to study real world conditions for their accurate simulation and successful accelerated testing, describes in details the role of accurate simulation in the development of automotive and aerospace engineering, shows that failures are most often found in the interconnections, step-by-step instructions and examples. This is the only book presently available that considers in detail both the positive and negative trends in testing development for prediction quality, reliability, safety, durability, maintainability, supportability, profit, and decreasing life-cycle cost, recalls, complaints and other performance components of the product. The author presents new ideas and offers a unique strategic approach to obtaining solutions which were not possible using earlier. His methodology has been widely implemented, continue to be adopted throughout the world, and leads to advance society through product improvement that can reduce loss of life, injuries, financial losses, and product recalls. It also covers new ideas in development positive and cost- effective trends in testing development, especially accelerated reliability and durability testing (ART/ADT), which includes integration accurate simulation of field/flight influences, safety, human factors, and leads to successful prediction of product performance during pre-design, design, manufacturing, and usage for the product's service life. Engineers, researchers, teachers and postgraduate/advanced students who are involved in automotive and aerospace engineering will find this a useful reference on how to apply the accelerated testing method to solve practical problems in these areas. Explains the similarities and differences between accelerated testing technologies used in automotive, aerospace, and other engineering fields Provides a step-by-step guide for the accurate physical simulation of field conditions for test subjects Includes case studies of accelerated testing in automotive and aerospace engineering
Author : Ned H.C. Hwang
Publisher : Springer Science & Business Media
ISBN 13 : 1441989676
Total Pages : 563 pages
Book Rating : 4.4/5 (419 download)
Download or read book Frontiers in Biomedical Engineering written by Ned H.C. Hwang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Frontiers in Biomedical Engineering will be an edited work taken from the 1st Annual World Congress of Chinese Biomedical Engineers - Taipei, Taiwan 2002. As the economy develops rapidly in China and the Asian-Pacific population merges into the global healthcare system, many researchers in the West are trying to make contact with the Chinese BME scientists. At WCCBME 2002, invited leaders, materials scientists, bioengineers, molecular and cellular biologists, orthopaedic surgeons, and manufacturers from P.R. of China, Taiwan, Singapore and Hong Kong covered all five major BME domains: biomechanics, biomaterials and tissue engineering, medical imaging, biophotonics and instrumentation, and rehabilitation. This edited work taken from the World Congress proceedings will capture worldwide readership.
Author : Yu Jiang
Publisher : Springer Nature
ISBN 13 : 981163694X
Total Pages : 171 pages
Book Rating : 4.8/5 (116 download)
Download or read book Non-Gaussian Random Vibration Fatigue Analysis and Accelerated Test written by Yu Jiang and published by Springer Nature. This book was released on 2021-09-15 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the theory, method and application of non-Gaussian random vibration fatigue analysis and test. The main contents include statistical analysis method of non-Gaussian random vibration, modeling and simulation of non-Gaussian/non-stationary random vibration, response analysis under non-Gaussian base excitation, non-Gaussian random vibration fatigue life analysis, fatigue reliability evaluation of structural components under Gaussian/non-Gaussian random loadings, non-Gaussian random vibration accelerated test method and application cases. From this book, the readers can not only learn how to reproduce the non-Gaussian vibration environment actually experienced by the product, but also know how to evaluate the fatigue life and reliability of the structure under non-Gaussian random excitation.
Author :
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (3 download)
Download or read book Highway Safety Literature written by and published by . This book was released on 1980 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Hassel
Publisher :
ISBN 13 :
Total Pages : 63 pages
Book Rating : 4.:/5 (115 download)
Download or read book Accelerated Structural Fatigue Testing of a Complete Vehicle in Various Environments written by David Hassel and published by . This book was released on 1974 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. G. Lambert
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (227 download)
Download or read book Accelerated Fatigue Test Rationale written by R. G. Lambert and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is typically of great interest and practical importance to accelerate a vibration or thermal cycling qualification or acceptance test in the laboratory from the actual service conditions. The test duration is compressed by a relatively large factor (e.g. 1000) with an attendant increase in applied vibration or temperature limit levels.
Author :
Publisher :
ISBN 13 :
Total Pages : 306 pages
Book Rating : 4.:/5 (14 download)
Download or read book Improved Fatigue Reliability and Accelerated Testing Methods for Vibratory Systems Under Gaussian and Non-Gaussian Excitation written by and published by . This book was released on 2018 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue life estimation, reliability and durability are important in acquisition, maintenance and operation of vehicle systems. Fatigue is considered as one of the most important failure modes of a mechanical system. Fatigue life is random because of the stochastic load, the inherent variability of material properties and the uncertainty in the definition of the S-N curve. Degradation of the material properties of a system throughout time may cause unexpected fatigue failures that eventually increase the lifecycle costs due to warranty costs, repairs and loss of market share. This dissertation has two main parts. In the first part, fatigue life prediction methods are investigated for linear and non-linear systems excited by Gaussian and non-Gaussian loading. For the latter, a general methodology to calculate the statistics of the output process considering the effects of skewness and kurtosis is used. Real operational conditions of ground vehicles involve non-Gaussian loading whose characterization is challenging. The excitation is first characterized using the first four moments (mean, variance, skewness and kurtosis) and a correlation structure. Then, the first four moments and the correlation structure of the response process are calculated using Polynomial Chaos Expansion (PCE) and Karhunen-Loeve (KL) expansion. Simulated trajectories from the response stochastic metamodel are rainflow counted to obtain realizations of the fatigue life random variable based on Miner's damage model. Finally, the Saddlepoint Approximation (SPA) method provides the PDF and percentiles of the fatigue life. In the second part of this dissertation, we develop a new Accelerated Life Testing (ALT) methodology using Gaussian or non-Gaussian excitations without assuming the type of life distribution or the relationship between life and stress level. The accuracy of fatigue life prediction at nominal loading conditions is affected by model uncertainty (system model and fatigue model error) and material uncertainty such as the coefficients of the S-N curve. The uncertainty of fatigue life prediction is reduced by performing tests at higher loading levels. This reduces the test duration. We will develop an ALT methodology to minimize the cost of testing while improving the accuracy of fatigue life prediction. All dissertation developments will be demonstrated with representative examples.
Author : F.E. Kiddle
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (11 download)
Download or read book Fatigue Testing with Periodic Heating - an Investigation of Some Methods of Acceleration written by F.E. Kiddle and published by . This book was released on 1974 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christian Lalanne
Publisher : John Wiley & Sons
ISBN 13 : 1118618939
Total Pages : 368 pages
Book Rating : 4.1/5 (186 download)
Download or read book Mechanical Vibration and Shock Analysis, Fatigue Damage written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Vibration and Shock Analysis, Second Edition Volume 4: 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 specification representing the effects produced by the set of vibrations imposed in a real-world environment. In this volume, which is devoted to the calculation of fatigue damage, the author explores the various hypotheses and models used to describe the behavior of material suffering fatigue and the laws of fatigue accumulation. He also considers the methods of counting response peaks, which are used to establish a 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. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.
