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The Development Of A Probabilistic Fracture Mechanics Method For Component Fatigue Lifing
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Book Synopsis The Development of a Probabilistic Fracture Mechanics Method for Component Fatigue Lifing by : Abdul Hamid Ahmed Abdul Razzak
Download or read book The Development of a Probabilistic Fracture Mechanics Method for Component Fatigue Lifing written by Abdul Hamid Ahmed Abdul Razzak and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of a Probabilistic Fracture Mechanics Method for Component Fatigue Lifting by : Abdul Hamid Ahmed Abdul Razzak
Download or read book The Development of a Probabilistic Fracture Mechanics Method for Component Fatigue Lifting written by Abdul Hamid Ahmed Abdul Razzak and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probabilistic Fracture Mechanics and Fatigue Methods by : J. M. Bloom
Download or read book Probabilistic Fracture Mechanics and Fatigue Methods written by J. M. Bloom and published by ASTM International. This book was released on 1983 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probabilistic fracture mechanics and reliability by : J.W. Provan
Download or read book Probabilistic fracture mechanics and reliability written by J.W. Provan and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of the 80's there has been an increasing need for analytic and numerical techniques, based on a thorough understanding of microstructural processes, that express in a manner suitable for practicing engineers the reliability of components and structures that are being subjected to degradation situations. Such situations fall within the framework offracture mechanics, fatigue, corrosion fatigue and pitting corrosion. Luckily, such techniques are now being developed and it was felt timely to combine in one volume reports by the leaders in this field who are currently making great strides towards solving these problems. Hence the idea of this monograph was born and I am pleased to be associated both with it and the contributors whose chapters are included in this volume. A very large part of the credit for this monograph must go to the authors who have taken time out from their busy schedules to prepare their submissions. They have all worked diligently over the last few months in order to get their manuscripts to me on time and I sincerely thank them for their help throughout the preparation of this volume.
Book Synopsis Probabilistic Aspects of Life Prediction by : W. Steven Johnson
Download or read book Probabilistic Aspects of Life Prediction written by W. Steven Johnson and published by ASTM International. This book was released on 2004 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: As fatigue and fracture mechanics approaches are used more often for determining the useful life and/or inspection intervals for complex structures, realization sets-in that all factors are not well known or characterized. Indeed, inherent scatter exists in initial material quality and in material performance. Furthermore, projections of component usage in determination of applied stresses are inexact at best and are subject to much discrepancy between projected and actual usage. Even the models for predicting life contain inherent sources of error based on assumptions and/or empirically fitted parameters. All of these factors need to be accounted for to determine a distribution of potential lives based on combination of the aforementioned variables, as well as other factors. The purpose of this symposium was to create a forum for assessment of the state-of-the-art in incorporating these uncertainties and inherent scatter into systematic probabilistic methods for conducting life assessment.
Book Synopsis Probabilistic Frature Mechanics and Fatigue Methods: Applications for Structural Design and Maintenance by :
Download or read book Probabilistic Frature Mechanics and Fatigue Methods: Applications for Structural Design and Maintenance written by and published by ASTM International. This book was released on with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue Testing and Analysis by : Yung-Li Lee
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
Book Synopsis Fatigue and Fracture Mechanics by : John H. Underwood
Download or read book Fatigue and Fracture Mechanics written by John H. Underwood and published by ASTM International. This book was released on 1997 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Mechanics of Fracture and Fatigue by : A. P. Parker
Download or read book The Mechanics of Fracture and Fatigue written by A. P. Parker and published by Spon Press. This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Problems of Fracture Mechanics and Fatigue by : E.E. Gdoutos
Download or read book Problems of Fracture Mechanics and Fatigue written by E.E. Gdoutos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: On Fracture Mechanics A major objective of engineering design is the determination of the geometry and dimensions of machine or structural elements and the selection of material in such a way that the elements perform their operating function in an efficient, safe and economic manner. For this reason the results of stress analysis are coupled with an appropriate failure criterion. Traditional failure criteria based on maximum stress, strain or energy density cannot adequately explain many structural failures that occurred at stress levels considerably lower than the ultimate strength of the material. On the other hand, experiments performed by Griffith in 1921 on glass fibers led to the conclusion that the strength of real materials is much smaller, typically by two orders of magnitude, than the theoretical strength. The discipline of fracture mechanics has been created in an effort to explain these phenomena. It is based on the realistic assumption that all materials contain crack-like defects from which failure initiates. Defects can exist in a material due to its composition, as second-phase particles, debonds in composites, etc. , they can be introduced into a structure during fabrication, as welds, or can be created during the service life of a component like fatigue, environment-assisted or creep cracks. Fracture mechanics studies the loading-bearing capacity of structures in the presence of initial defects. A dominant crack is usually assumed to exist.
Book Synopsis Advances in Fatigue and Fracture Testing and Modelling by : Zak Abdallah
Download or read book Advances in Fatigue and Fracture Testing and Modelling written by Zak Abdallah and published by BoD – Books on Demand. This book was released on 2022-02-23 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Fatigue and Fracture Testing and Modelling explores various aspects related to fatigue and fracture in metallic and non-metallic materials in terms of mechanical testing and numerical modelling. The book provides results of research work conducted by experts worldwide. It discusses fatigue failure of materials and presents possible numerical solutions. It also presents predictive models and finite element (FE) activities to illustrate the behaviour of materials in real-life conditions.
Book Synopsis Fatigue and Fracture Mechanics by : Kenneth L. Jerina
Download or read book Fatigue and Fracture Mechanics written by Kenneth L. Jerina and published by ASTM International. This book was released on 2000 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue Life Analyses of Welded Structures by : Tom Lassen
Download or read book Fatigue Life Analyses of Welded Structures written by Tom Lassen and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avoiding or controlling fatigue damage is a major issue in the design and inspection of welded structures subjected to dynamic loading. Life predictions are usually used for safe life analysis, i.e. for verifying that it is very unlikely that fatigue damage will occur during the target service life of a structure. Damage tolerance analysis is used for predicting the behavior of a fatigue crack and for planning of in-service scheduled inspections. It should be a high probability that any cracks appearing are detected and repaired before they become critical. In both safe life analysis and the damage tolerance analysis there may be large uncertainties involved that have to be treated in a logical and consistent manner by stochastic modeling. This book focuses on fatigue life predictions and damage tolerance analysis of welded joints and is divided into three parts. The first part outlines the common practice used for safe life and damage tolerance analysis with reference to rules and regulations. The second part emphasises stochastic modeling and decision-making under uncertainty, while the final part is devoted to recent advances within fatigue research on welded joints. Industrial examples that are included are mainly dealing with offshore steel structures. Spreadsheets which accompany the book give the reader the possibility for hands-on experience of fatigue life predictions, crack growth analysis and inspection planning. As such, these different areas will be of use to engineers and researchers.
Book Synopsis Fatigue Damage, Crack Growth and Life Prediction by : F. Ellyin
Download or read book Fatigue Damage, Crack Growth and Life Prediction written by F. Ellyin and published by Springer Science & Business Media. This book was released on 1996-11-30 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue failure is a multi-stage process. It begins with the initiation of cracks, and with continued cyclic loading the cracks propagate, finally leading to the rupture of a component or specimen. The demarcation between the above stages is not well-defined. Depending upon the scale of interest, the variation may span three orders of magnitude. For example, to a material scientist an initiated crack may be of the order of a micron, whereas for an engineer it can be of the order of a millimetre. It is not surprising therefore to see that investigation of the fatigue process has followed different paths depending upon the scale of phenomenon under investigation. Interest in the study of fatigue failure increased with the advent of industrial ization. Because of the urgent need to design against fatigue failure, early investiga tors focused on prototype testing and proposed failure criteria similar to design formulae. Thus, a methodology developed whereby the fatigue theories were proposed based on experimental observations, albeit at times with limited scope. This type of phenomenological approach progressed rapidly during the past four decades as closed-loop testing machines became available.
Book Synopsis Application of Probabilistic Fracture Mechanics for Life Prediction of Metallic Materials by : Justin Augustinus James
Download or read book Application of Probabilistic Fracture Mechanics for Life Prediction of Metallic Materials written by Justin Augustinus James and published by . This book was released on 2007 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: A statistically based analytical method was developed to improve the reliability of fatigue failure predictions for metallic components of various geometric configurations subjected to constant amplitude fatigue loads. The method required the determination of the distribution of equivalent initial flaw sizes. The equivalent initial flaw size associated with an actual crack is influenced by the geometric configuration of the body, the applied loading conditions and the crack growth model employed. In this study four factors were identified including two types of crack configurations and their influence on the equivalent initial flaw size distribution was investigated. Also the influence of the four factors on the equivalent initial flaw size distribution was examined. These are the stress concentration factor, tg K, the uncracked ligament length, n w, the maximum stress, max S and mean stress, mean S, of the applied constant amplitude fatigue loading. Two types of initial crack configurations were assumed; corner and surface flaw. Five specimen types were investigated; smooth unnotched, open-hole, Kt = 3, 4 t K = and 5 t K = specimens all of which have different stress concentration factors. Two statistical models were fitted and investigated. One model assumed that the initial crack started as a corner crack, transitioned into a through crack, and then propagated till final fracture. The other model assumed that the initial crack started as a surface crack, transitioned into a through crack, and then propagated till final fracture. For each crack configuration, a statistical model was fitted between the mean and the standard deviation of the distributions of the equivalent initial flaw sizes and the stress concentration factor, the uncracked ligament length, the maximum stress, and the mean stress of the fatigue loading. Multiple regression techniques were used to fit these models. Using the statistical models together with Monte Carlo simulation, a distribution of estimated fatigue lives were generated using the FASTRAN-II crack growth code for the Kt = 3 and 4 t K = specimen types, at various stress levels. Hypothesis testing was used to compare the estimated fatigue lives of the specimen with the measured fatigue lives obtained from testing at a level of significance of 0.05. An acceptance criterion was established to determine if the predicted fatigue lives compared well with experimentally obtained fatigue lives. As a conclusion, the methodology provided adequate approximation of fatigue life for some of the fatigue loading cases of the 4 t K = specimens and for one of the fatigue loading cases of the 3 t K = specimens. The initial crack configuration type did not have any significant effect on the proposed methodology.
Book Synopsis Fracture mechanics methodology by : George C. Sih
Download or read book Fracture mechanics methodology written by George C. Sih and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of a collection of lectures prepared for a short course on "Fracture Mechanics Methodology" sponsored by the Advisory Group for Aerospace Research and Development (AGARD), part of the North Atlantic Treaty Organization (NATO). The course was organized jointly by Professor George C. Sih of the Institute of Fracture and Solid Mechanics at Lehigh University in the United States and Professor Luciano Faria from Centro de Mecanica e de Materiais das Universidade de Lisboa in Portugal. It was held in Lisbon from June 1 to 4, 1981. Dr. Robert Badaliance from the McDonnell Aircraft Company in St. Louis and Dr. Oscar Orringer from the Depart ment of Transportation in Cambridge are the other US lecturers while Professor Carlos Moura Branco from Portugal also lectured. The audience consisted of engineers from the Portuguese industry with a large portion from the aeronautical sector and others who are particularly interested to apply the fracture mechanics discipline for analyzing the integrity of structural components and fracture control methods. Particular. emphases were given to the fundamentals of fracture mechanics as applied to aircraft structures.
Book Synopsis Probabilistic Methods in Fatigue and Fracture by : A. B. O. Soboyejo
Download or read book Probabilistic Methods in Fatigue and Fracture written by A. B. O. Soboyejo and published by . This book was released on 2001 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book presents an in-depth report on probabilistic methods used to study fatigue and fracture of engineering materials. It is divided into three sections: fatigue; reliability modeling; and statistical methods. The book will serve as a useful new reference on probabilistic methods in fatigue and fracture. It should be of interest to researchers and engineers in industry and academia.
