Structural Hot Spot Stress Approach To Fatigue Analysis Of Welded Components
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Structural Hot Spot Stress Approach To Fatigue Analysis Of Welded Components
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Author : Erkki Niemi
language : en
Publisher: Springer
Release Date : 2017-08-28
Structural Hot Spot Stress Approach To Fatigue Analysis Of Welded Components written by Erkki Niemi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-28 with Technology & Engineering categories.
This book provides background and guidance on the use of the structural hot-spot stress approach to fatigue analysis. The book also offers Design S-N curves for use with the structural hot-spot stress for a range of weld details, and presents parametric formulas for calculating stress increases due to misalignment and structural discontinuities. Highlighting the extension to structures fabricated from plates and non-tubular sections. The structural hot-spot stress approach focuses on cases of potential fatigue cracking from the weld toe and it has been in use for many years in tubular joints. Following an explanation of the structural hot-spot stress, its definition and its relevance to fatigue, the book describes methods for its determination. It considers stress determination from both finite element analysis and strain gauge measurements, and emphasizes the use of finite element stress analysis, providing guidance on the choice of element type and size for use with either solid or shell elements. Lastly, it illustrates the use of the recommendations in four case studies involving the fatigue assessment of welded structures using the structural hot-spot stress
Fatigue Analysis Of Welded Components
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Author : E. Niemi
language : en
Publisher: Woodhead Publishing
Release Date : 2006-09-27
Fatigue Analysis Of Welded Components written by E. Niemi and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-09-27 with Technology & Engineering categories.
This report provides background and guidance on the use of the structural hot spot stress approach to the fatigue design of welded components and structures. It complements the IIW recommendations for 'Fatigue Design of Welded Joints and Components' and extends the information provided in the IIW recommendations on 'Stress Determination for Fatigue Analysis of Welded Components'. This approach is applicable to cases of potential fatigue cracking from the weld toe. It has been in use for many years in the context of tubular joints. The present report concentrates on its extension to structures fabricated from plates and non-tubular sections.Following an explanation of the structural hot spot stress, its definition and its relevance to fatigue, the authors describe methods for its determination. Stress determination from both finite element analysis and strain gauge measurements is considered. Parametric formulae for calculating stress increases due to misalignment and structural discontinuities are also presented. Special attention is paid to the use of finite element stress analysis and guidance is given on the choice of element type and size for use with either solid or shell elements. Design S-N curves for use with the structural hot spot stress are presented for a range of weld details. Finally, practical application of the recommendations is illustrated in two case studies involving the fatigue assessment of welded structures using the structural hot spot stress approach. - Provides practical guidance on the application of the structural hot-spot stress approach - Discusses stress determination from both finite element analysis and strain gauge measurements - Practical application of the recommendations is illustrated in two case studies
Stress Determination For Fatigue Analysis Of Welded Components
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Author : E. Niemi
language : en
Publisher: Woodhead Publishing
Release Date : 1995-04-30
Stress Determination For Fatigue Analysis Of Welded Components written by E. Niemi and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-04-30 with Technology & Engineering categories.
This report introduces definitions of the terminology relevant to stress determination for fatigue analysis of welded components. The various stress concentrations, stress categories and fatigue analysis methods are defined. Fatigue analysis methods considered are nominal stress, hot spot stress, notch stress, notch strain and fracture mechanics approaches. The report also contains comprehensive recommendations concerning the application of finite element methods and experimental methods for stress determination. It is intended for fatigue design of common welded structures, such as cranes, excavators, vehicle frames, bridges, ship hulls, offshore structures etc. fabricated from materials at least 3mm thick. In general, attention is focused on weld details which give rise to fatigue cracking from the surface, notably from the weld toe.
Fatigue Assessment Of Welded Joints By Local Approaches
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Author : Dieter Radaj
language : en
Publisher: Woodhead Publishing
Release Date : 2006-10-30
Fatigue Assessment Of Welded Joints By Local Approaches written by Dieter Radaj and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10-30 with Technology & Engineering categories.
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.
Recommendations For Fatigue Design Of Welded Joints And Components
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Author : A. F. Hobbacher
language : en
Publisher: Springer
Release Date : 2015-12-23
Recommendations For Fatigue Design Of Welded Joints And Components written by A. F. Hobbacher and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-23 with Technology & Engineering categories.
This book provides a basis for the design and analysis of welded components that are subjected to fluctuating forces, to avoid failure by fatigue. It is also a valuable resource for those on boards or commissions who are establishing fatigue design codes. For maximum benefit, readers should already have a working knowledge of the basics of fatigue and fracture mechanics. The purpose of designing a structure taking into consideration the limit state for fatigue damage is to ensure that the performance is satisfactory during the design life and that the survival probability is acceptable. The latter is achieved by the use of appropriate partial safety factors. This document has been prepared as the result of an initiative by Commissions XIII and XV of the International Institute of Welding (IIW).
Iiw Recommendations On Methods For Improving The Fatigue Strength Of Welded Joints
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Author : P J Haagensen
language : en
Publisher: Woodhead Publishing
Release Date : 2013-01-25
Iiw Recommendations On Methods For Improving The Fatigue Strength Of Welded Joints written by P J Haagensen and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-25 with Technology & Engineering categories.
The weld toe is a primary source of fatigue cracking because of the severity of the stress concentration it produces. Weld toe improvement can increase the fatigue strength of new structures significantly. It can also be used to repair or upgrade existing structures. However, in practice there have been wide variations in the actual improvements in fatigue strength achieved. Based on an extensive testing programme organised by the IIW, this report reviews the main methods for weld toe improvement to increase fatigue strength: burr grinding, TIG dressing and hammer and needle peening. The report provides specifications for the practical use of each method, including equipment, weld preparation and operation. It also offers guidance on inspection, quality control and training as well as assessments of fatigue strength and thickness effects possible with each technique. IIW recommendations on methods for improving the fatigue strength of welded joints will allow a more consistent use of these methods and more predictable increases in fatigue strength. Provides specifications for the practical use of each weld toe method, including equipment, weld preparation and operation Offers guidance on inspection, quality control and training, as well as assessments of fatigue strength and thickness effects possible with each technique This report will allow a more consistent use of these methods and more predictable increases in fatigue strength
Fatigue Design Esis 16
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Author : J. Solin
language : en
Publisher: Wiley-Blackwell
Release Date : 1993-03-02
Fatigue Design Esis 16 written by J. Solin and has been published by Wiley-Blackwell this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-03-02 with Technology & Engineering categories.
A compilation of research in fatigue design, prediction, and assessment Fatigue Design is a collection of research presented at the 1993 International Symposium on Fatigue Design. Detailing the latest findings and most current research, this book features papers on a variety of pertinent topics, including the quantification of service load for fatigue life predictions, identification of stress states and failure modes, assessment of residual life in damaged components, and more. Special attention is paid to the need for simple and reliable prediction tools to help better ensure adequate strength at the design stage.
Chemical Engineering Design
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Author : Gavin Towler
language : en
Publisher: Elsevier
Release Date : 2012-01-13
Chemical Engineering Design written by Gavin Towler and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-13 with Technology & Engineering categories.
'Bottom line: For a holistic view of chemical engineering design, this book provides as much, if not more, than any other book available on the topic.' Extract from Chemical Engineering Resources review. Chemical Engineering Design is a complete course text for students of chemical engineering. Written for the Senior Design Course, and also suitable for introduction to chemical engineering courses, it covers the basics of unit operations and the latest aspects of process design, equipment selection, plant and operating economics, safety and loss prevention. It is a textbook that students will want to keep through their undergraduate education and on into their professional lives.
Fatigue Of Welded Structures
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Author : Timothy Russell Gurney
language : en
Publisher: CUP Archive
Release Date : 1979-12-20
Fatigue Of Welded Structures written by Timothy Russell Gurney and has been published by CUP Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979-12-20 with Technology & Engineering categories.