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Author : Xu Liu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book Predicting Fatigue Life of Welded Joints Under Variable Amplitude Loading Spectra written by Xu Liu and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tom Lassen
Publisher : John Wiley & Sons
ISBN 13 : 1118614704
Total Pages : 442 pages
Book Rating : 4.1/5 (186 download)
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.
Author : Yi Wang
Publisher :
ISBN 13 :
Total Pages : 163 pages
Book Rating : 4.:/5 (643 download)
Download or read book Fatigue Life Prediction of Fillet Welded Joints Under Variable Amplitude Load written by Yi Wang and published by . This book was released on 1986 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T R Gurney
Publisher : Woodhead Publishing
ISBN 13 : 1845691032
Total Pages : 457 pages
Book Rating : 4.8/5 (456 download)
Download or read book Cumulative Damage of Welded Joints written by T R Gurney and published by Woodhead Publishing. This book was released on 2006-08-25 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue is a mechanism of failure which involves the formation and growth of cracks under the action of repeated stresses. Ultimately, a crack may propagate to such an extent that total fracture of the member may occur. To avoid fatigue it is essential to design the structure with inherent fatigue strength. However, fatigue strength for variable amplitude loading is not a constant material property and any calculations are necessarily built on a number of assumptions. Cumulative damage of welded joints explores the wealth of research in this important field and its implications for the design and manufacture of welded components.After an Introduction, chapter two introduces the constant amplitude database, which contains results obtained in test conditions and which forms the basis of the basic S-N curves for various types of joint. Chapter three discusses the influence of residual stresses which can have a marked effect on fatigue behaviour. Chapter four explores variable amplitude loading and the problem of how information from laboratory tests, obtained under constant amplitude conditions, can be applied to the design of structures for service conditions. This problem is further investigated in the next chapter which is devoted to two and three level load testing. Chapters six, seven and eight look at the influence that the variety of variable loading spectra can have on fatigue strength, whether narrow or wide band loading or cycles of small stress range. Taking all of this knowledge, chapter nine discusses structure designs.Cumulative damage of welded joints is a comprehensive source of invaluable information for welding engineers, supervisors, inspection personnel and designers. It will also be of great interest for academics working in the fields of structural and mechanical engineering. Covers the wealth of research in the field of fatigue strength and its role in the design and manufacture of welded components Invaluable reference source for welding engineers, supervisors, inspection personnel and designers
Author : K Macdonald
Publisher : Elsevier
ISBN 13 : 0857092502
Total Pages : 353 pages
Book Rating : 4.8/5 (57 download)
Download or read book Fracture and Fatigue of Welded Joints and Structures written by K Macdonald and published by Elsevier. This book was released on 2011-04-19 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: The failure of any welded joint is at best inconvenient and at worst can lead to catastrophic accidents. Fracture and fatigue of welded joints and structures analyses the processes and causes of fracture and fatigue, focusing on how the failure of welded joints and structures can be predicted and minimised in the design process. Part one concentrates on analysing fracture of welded joints and structures, with chapters on constraint-based fracture mechanics for predicting joint failure, fracture assessment methods and the use of fracture mechanics in the fatigue analysis of welded joints. In part two, the emphasis shifts to fatigue, and chapters focus on a variety of aspects of fatigue analysis including assessment of local stresses in welded joints, fatigue design rules for welded structures, k-nodes for offshore structures and modelling residual stresses in predicting the service life of structures. With its distinguished editor and international team of contributors, Fracture and fatigue of welded joints and structures is an essential reference for mechanical, structural and welding engineers, as well as those in the academic sector with a research interest in the field. Analyses the processes and causes of fracture and fatigue, focusing predicting and minimising the failure of welded joints in the design process Assesses the fracture of welded joints and structure featuring constraint-based fracture mechanics for predicting joint failure Explores specific considerations in fatigue analysis including the assessment of local stresses in welded joints and fatigue design rules for welded structures
Author : Tadeusz Lagoda
Publisher : Springer Science & Business Media
ISBN 13 : 3540770623
Total Pages : 124 pages
Book Rating : 4.5/5 (47 download)
Download or read book Lifetime Estimation of Welded Joints written by Tadeusz Lagoda and published by Springer Science & Business Media. This book was released on 2008-01-10 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the paper the author attempts to assess the fatigue life of chosen welded joints. It focuses especially on chosen problems that accompany deter- nation of the fatigue life of welded joints, taking into consideration the strain energy density parameter. Chapter 2 describes the welded joint as a stress concentrator. The state of stress and strain in the notch are described and theoretical and fatigue coefficients are indicated. The fatigue coef- cient of the notch effect is estimated on the basis of fictitious radius in the notch root. Chapter 3 presents a model of fatigue life assessment under uniaxial stress state with statistical handling of data presented. The new energy model of fatigue life assessment, which rests upon the analysis of stress and strain in the critical plane, is described in detail in chapter 4. The principle of such a description is presented in the uniaxial as well as in - axial state of loading. Chapter 5 contains the analysis of tests of four ma- rials subjected to different loadings: cyclic, variable-amplitude with Ga- sian distribution, and variable amplitude with Gaussian distribution and overloading for symmetric and pulsating loading. The analysis is based on the determined fatigue characteristics for all the considered materials. Chapter 6 shows the application of the model in the fatigue life assessment in the complex state of loading (bending with torsion of flange-tube and tube-tube joints) based on fatigue research of steel and aluminum welded joints carried out in well-known German centres.
Author : N. Pan
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (125 download)
Download or read book Fatigue Life Predicition of Resistance Spot Welds Under Variable Amplitude Loads written by N. Pan and published by . This book was released on 1999 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work presented here builds on the practical and effective spot weld fatigue life prediction method, the structural stress method (SSM), that was developed recently [1]. Constant amplitude loading tests for various spot weld joint configurations have been conducted and the SSM has been shown to accurately predict fatigue life [1].
Author : A Hobbacher
Publisher : Woodhead Publishing
ISBN 13 : 9781855733152
Total Pages : 132 pages
Book Rating : 4.7/5 (331 download)
Download or read book Fatigue Design of Welded Joints and Components written by A Hobbacher and published by Woodhead Publishing. This book was released on 1996-10-31 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: These recommendations present general methods for the assessment of fatigue damage in welded components, which may affect the limit states of a structure, such as ultimate limit state and serviceability limited state. Fatigue resistance data is given for welded components made of wrought or extruded products of ferritic/pearlitic or banitic structural steels up to fy = 700 Mpa and of aluminium alloys commonly used for welded structures.
Author : Peter C. McKeighan
Publisher : ASTM International
ISBN 13 : 0803134797
Total Pages : 588 pages
Book Rating : 4.8/5 (31 download)
Download or read book Fatigue Testing and Analysis Under Variable Amplitude Loading Conditions written by Peter C. McKeighan and published by ASTM International. This book was released on 2005 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dieter Radaj
Publisher : Woodhead Publishing
ISBN 13 : 1845691881
Total Pages : 661 pages
Book Rating : 4.8/5 (456 download)
Download or read book Fatigue Assessment of Welded Joints by Local Approaches written by Dieter Radaj and published by Woodhead Publishing. This book was released on 2006-10-30 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: Local approaches to fatigue assessment are used to predict the structural durability of welded joints, to optimise their design and to evaluate unforeseen joint failures. This standard work provides a systematic survey of the principles and practical applications of the various methods. It covers the hot spot structural stress approach to fatigue in general, the notch stress and notch strain approach to crack initiation and the fracture mechanics approach to crack propagation. Seam-welded and spot-welded joints in structural steels and aluminium alloys are also considered.This completely reworked second edition takes into account the tremendous progress in understanding and applying local approaches which has been achieved in the last decade. It is a standard reference for designers, structural analysts and testing engineers who are responsible for the fatigue-resistant in-service behaviour of welded structures. Completely reworked second edition of a standard work providing a systematic survey of the principles and practical applications of the various methods Covers the hot spot structural stress approach to fatigue in general, the notch stress and notch strain approach to crack initiation and the fracture mechanics approach to crack propagation. Written by a distinguished team of authors
Author : Michael R. Mitchell
Publisher : ASTM International
ISBN 13 : 0803114230
Total Pages : 495 pages
Book Rating : 4.8/5 (31 download)
Download or read book Advances in Fatigue Lifetime Predictive Techniques written by Michael R. Mitchell and published by ASTM International. This book was released on 1992 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-seven papers from fatigue researchers and practitioners review in detail recent progress in the development of methods to predict fatigue performance of materials and structures and to assess the extent to which these new methods are finding their way into practice. The papers, from the ASTM
Author : Mehrdad Sarafrazi
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Download or read book Fracture Mechanics Fatigue Life Assessment of Welded Joints Under Ultrasonic Impact Treatment written by Mehrdad Sarafrazi and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welding joints are the most used joining method to fabricate engineering structures due to their low cost, structural strength, and geometric flexibility. Irregular geometries, micro cracks, defects, high stress concentration and tensile residual stresses are some of the results of a highly metallurgical process considered as welding. Thus, an important subject of growing concern in product design is to consider some of the critical factors caused from the weld process including high tensile residual stresses and stress concentrations to properly evaluate the fatigue life of the structures. Lightweight design of welded steel and aluminum structures in cyclic service requires the use of post-treatment approaches like Ultrasonic Impact Treatment (UIT). In this thesis, an evaluation of fatigue tests carried out recently on welded specimens exposed to UIT under the effect of the constant amplitude (CA) loading on the fatigue strength is described. First, the effects of the various fatigue damage parameters on the as-welded (AW) condition and the impact treated welds are described in the literature review. Furthermore, fatigue test data have been taken from literature for both conditions under CA loading for several different stress ranges for each material. Following the tests, residual stress distributions below the weld toe surface have been specified by x-ray diffraction of untested specimens. More importantly, the test data obtained from the literature were analyzed through out the thesis and were used to define input parameter values for fracture mechanics analyses of the welded joint specimens. After that, the crack growth assessment of welded structures is provided. For comparison purposes, both Walker and Forman fatigue crack growth models are thoroughly reviewed and their advantages as invaluable tools for predicting the effects of UIT on fatigue performance for welded joints are examined. Subsequently, the benefit of the models in predicting fatigue crack growth behaviors for nine distinct materials are examined and the effects of the various material strength parameters on the impact treatment performance are assessed. Then, fatigue crack propagation life of the materials is displayed. In the end, the crack shape evolution of the materials is depicted. In conclusion, the outcomes of this investigation accompanied by proposed future work are mentioned.
Author : T. R. Gurney
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (258 download)
Download or read book The Influence of Mean and Residual Stresses on the Fatigue Strength of Welded Joints Under Variable Amplitude Loading written by T. R. Gurney and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy Russell Gurney
Publisher : CUP Archive
ISBN 13 : 9780521225588
Total Pages : 480 pages
Book Rating : 4.2/5 (255 download)
Download or read book Fatigue of Welded Structures written by Timothy Russell Gurney and published by CUP Archive. This book was released on 1979-12-20 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. J. Tubby
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (127 download)
Download or read book Fatigue of Welded Joints Under Variable Amplitude Loading written by P. J. Tubby and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. W. Hoeppner
Publisher : ASTM International
ISBN 13 : 9780803103481
Total Pages : 304 pages
Book Rating : 4.1/5 (34 download)
Download or read book Fatigue Testing of Weldments written by D. W. Hoeppner and published by ASTM International. This book was released on 1978 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy Russell Gurney
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (24 download)
Download or read book Fatigue Tests on Fillet Welded Joints Under Variable Amplitude Loading written by Timothy Russell Gurney and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
