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

Author : Erkki Niemi
Publisher : Springer
ISBN 13 : 9811055688
Total Pages : 76 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Structural Hot-Spot Stress Approach to Fatigue Analysis of Welded Components by : Erkki Niemi

Download or read book Structural Hot-Spot Stress Approach to Fatigue Analysis of Welded Components written by Erkki Niemi and published by Springer. This book was released on 2017-08-28 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Author : E. Niemi
Publisher : Woodhead Publishing
ISBN 13 : 1845696662
Total Pages : 56 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Fatigue Analysis of Welded Components by : E. Niemi

Download or read book Fatigue Analysis of Welded Components written by E. Niemi and published by Woodhead Publishing. This book was released on 2006-09-27 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Author : E. Niemi
Publisher : Woodhead Publishing
ISBN 13 : 9781855732131
Total Pages : 80 pages
Book Rating : 4.7/5 (321 download)

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Book Synopsis Stress Determination for Fatigue Analysis of Welded Components by : E. Niemi

Download or read book Stress Determination for Fatigue Analysis of Welded Components written by E. Niemi and published by Woodhead Publishing. This book was released on 1995-04-30 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Author : Dieter Radaj
Publisher : Woodhead Publishing
ISBN 13 : 1845691881
Total Pages : 660 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Fatigue Assessment of Welded Joints by Local Approaches by : Dieter Radaj

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 660 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

Fatigue Assessment of Welded Joints by Local Approaches

Author : Dieter Radaj
Publisher : Woodhead Publishing
ISBN 13 : 9781855734036
Total Pages : 476 pages
Book Rating : 4.7/5 (34 download)

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Book Synopsis Fatigue Assessment of Welded Joints by Local Approaches by : Dieter Radaj

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 1998 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

IIW Recommendations for the Fatigue Assessment of Welded Structures By Notch Stress Analysis

Author : W Fricke
Publisher : Woodhead Publishing
ISBN 13 : 085709856X
Total Pages : 76 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis IIW Recommendations for the Fatigue Assessment of Welded Structures By Notch Stress Analysis by : W Fricke

Download or read book IIW Recommendations for the Fatigue Assessment of Welded Structures By Notch Stress Analysis written by W Fricke and published by Woodhead Publishing. This book was released on 2012-10-22 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The notch stress approach for fatigue assessment of welded joints is based on the highest elastic stress at the weld toe or root. In order to avoid arbitrary or infinite stress results, a rounded shape with a reference radius instead of the actual sharp toe or root is usually assumed. IIW recommendations for the fatigue assessment of welded structures by notch stress analysis reviews different proposals for reference radii together with associated S-N curves. Detailed recommendations are given for the numerical analysis of notch stress by the finite or boundary element method. Several aspects are discussed, such as the structural weakening by keyhole-shaped notches and the consideration of multiaxial stress states. Appropriate S-N curves are presented for the assessment of the fatigue strength of different materials. Finally, four examples illustrate the application of the approach as well as the variety of structures which can be analysed and the range of results that can be obtained from different models. Provides detailed recommendations for the number analysis of notch stress by the finite or boundary element method Discusses structural weakening by keyhole-shaped notches and the consideration of multiaxial stress states Provides four comprehensive examples, illustrating the variety of structures which can be analysed and the range of results that can be obtained from different models

Fatigue of Welded Structures

Author : Timothy Russell Gurney
Publisher : CUP Archive
ISBN 13 : 9780521225588
Total Pages : 480 pages
Book Rating : 4.2/5 (255 download)

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Book Synopsis Fatigue of Welded Structures by : Timothy Russell Gurney

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:

Recommendations for Fatigue Design of Welded Joints and Components

Author : A. F. Hobbacher
Publisher : Springer
ISBN 13 : 3319237578
Total Pages : 153 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Recommendations for Fatigue Design of Welded Joints and Components by : A. F. Hobbacher

Download or read book Recommendations for Fatigue Design of Welded Joints and Components written by A. F. Hobbacher and published by Springer. This book was released on 2015-12-23 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Fracture and Fatigue of Welded Joints and Structures

Author : K Macdonald
Publisher : Elsevier
ISBN 13 : 0857092502
Total Pages : 353 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Fracture and Fatigue of Welded Joints and Structures by : K Macdonald

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

Design and Analysis of Fatigue Resistant Welded Structures

Author : Dieter Radaj
Publisher : Woodhead Publishing
ISBN 13 : 9781855730045
Total Pages : 386 pages
Book Rating : 4.7/5 (3 download)

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Book Synopsis Design and Analysis of Fatigue Resistant Welded Structures by : Dieter Radaj

Download or read book Design and Analysis of Fatigue Resistant Welded Structures written by Dieter Radaj and published by Woodhead Publishing. This book was released on 1990-01-03 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: An English version of a sucessful German book. Both traditional and modern concepts are described.

Fatigue Life Analyses of Welded Structures

Author : Tom Lassen
Publisher : John Wiley & Sons
ISBN 13 : 1118614704
Total Pages : 442 pages
Book Rating : 4.1/5 (186 download)

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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.

Fatigue Design of Welded Joints and Components

Author : A Hobbacher
Publisher : Woodhead Publishing
ISBN 13 : 9781855733152
Total Pages : 132 pages
Book Rating : 4.7/5 (331 download)

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Book Synopsis Fatigue Design of Welded Joints and Components by : A Hobbacher

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.

IIW Guidelines on Weld Quality in Relationship to Fatigue Strength

Author : Bertil Jonsson
Publisher : Springer
ISBN 13 : 3319191985
Total Pages : 115 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis IIW Guidelines on Weld Quality in Relationship to Fatigue Strength by : Bertil Jonsson

Download or read book IIW Guidelines on Weld Quality in Relationship to Fatigue Strength written by Bertil Jonsson and published by Springer. This book was released on 2016-04-13 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents guidelines on quantitative and qualitative measures of the geometric features and imperfections of welds to ensure that it meets the fatigue strength requirements laid out in the recommendations of the IIW (International Institute of Welding). Welds that satisfy these quality criteria can be assessed in accordance with existing IIW recommendations based on nominal stress, structural stress, notch stress or linear fracture mechanics. Further, the book defines more restrictive acceptance criteria based on weld geometry features and imperfections with increased fatigue strength. Fatigue strength for these welds is defined as S-N curves expressed in terms of nominal applied stress or hot spot stress. Where appropriate, reference is made to existing quality systems for welds.In addition to the acceptance criteria and fatigue assessment curves, the book also provides guidance on their inspection and quality control. The successful implementation of these methods depends on adequate training for operators and inspectors alike. As such, the publication of the present IIW Recommendations is intended to encourage the production of appropriate training aids and guidelines for educating, training and certifying operators and inspectors.

Advanced Joining Processes

Author : Lucas F. M. da Silva
Publisher : Elsevier
ISBN 13 : 0128208872
Total Pages : 402 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Advanced Joining Processes by : Lucas F. M. da Silva

Download or read book Advanced Joining Processes written by Lucas F. M. da Silva and published by Elsevier. This book was released on 2020-10-31 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Joining Processes: Welding, Plastic Deformation, and Adhesion brings together a range of advanced thermal, mechanical, and chemical methods of joining, offering an up-to-date resource for those looking to understand and utilize the very latest techniques. Efficient joining techniques are critical to a range of innovative applications, with technology in constant development. The first section of the book provides in-depth information on advanced welding techniques, including friction stir, explosive, ultrasonic, laser, electron beam, and computational weld analysis and fatigue of structures. The second section highlights key developments in joining by plastic deformation, adhesive bonding, and hybrid joining. The coverage of each technique is supported by practical guidance, detailed analysis, and finite element simulations. This is an essential reference for researchers and advanced students in joining, welding, adhesion, materials processing, mechanical engineering, plastics engineering, manufacturing, civil engineering, and automotive/aerospace engineering, as well as engineers, scientists, and R&D professionals, using joining, welding, and adhesion methods, across a range of industries. Presents the latest research findings and developments across welding, joining by plastic deformation, and adhesion Includes state-of-the-art methods, such as laser, ultrasonic and electron beam welding, hybrid joining, and the use of electromagnetic pulses Offers practical guidance, detailed analysis, and finite element simulations, for all techniques covered

Analysis and Design of Marine Structures

Author : Carlos Guedes Soares
Publisher : CRC Press
ISBN 13 : 0415549345
Total Pages : 578 pages
Book Rating : 4.4/5 (155 download)

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Book Synopsis Analysis and Design of Marine Structures by : Carlos Guedes Soares

Download or read book Analysis and Design of Marine Structures written by Carlos Guedes Soares and published by CRC Press. This book was released on 2009-03-06 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Analysis and Design of Marine Structures' explores recent developments in methods and modelling procedures for structural assessment of marine structures: - Methods and tools for establishing loads and load effects; - Methods and tools for strength assessment; - Materials and fabrication of structures; - Methods and tools for structural design and optimisation; - Structural reliability, safety and environment protection. The book is a valuable reference source for academics, engineers and professionals involved in marine structures and design of ship and offshore structures.

Mitochondrial Medicine

Author : Salvatore DiMauro
Publisher : CRC Press
ISBN 13 : 9780415390361
Total Pages : 1000 pages
Book Rating : 4.3/5 (93 download)

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Book Synopsis Mitochondrial Medicine by : Salvatore DiMauro

Download or read book Mitochondrial Medicine written by Salvatore DiMauro and published by CRC Press. This book was released on 2006-04-19 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mitochondrial dysfunction is increasingly being recognized as the basis of a wide variety of human diseases. Providing an authoritative update on our current knowledge of mitochondrial medicine, this text draws together world authorities from various fields to present general therapeutic strategies, as well as the treatments presently available in different specialties - thus making it essential reading for clinicians involved with the management of patients with mitochondrial diseases. A unique work, this text covers a range of specialties, including cardiology, ophthalmology, otology, nephrology, gastroenterology, hematology-oncology, and reproductive medicine, and does not focus exclusively on the more commonly known neurologic conditions. An accessible, user-friendly text, it also presents translational concepts of mitochondrial biogenesis and genetics in vignettes related to specific questions raised by the disease under discussion, rather than concentrating on basic science, which can often intimidate clinicians. This pioneering work is primarily directed to a clinical audience who are interested in the diverse and diagnostically challenging clinical presentations of mitochondrial diseases and their pathophysiology.

Fatigue Design Procedure for Welded Hollow Section Joints

Author : X-L Zhao
Publisher : Elsevier
ISBN 13 : 0857093126
Total Pages : 96 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Fatigue Design Procedure for Welded Hollow Section Joints by : X-L Zhao

Download or read book Fatigue Design Procedure for Welded Hollow Section Joints written by X-L Zhao and published by Elsevier. This book was released on 2000-05-08 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This International Institute of Welding (IIW) report was presented at the 52nd Annual Assembly in Lisbon in June 1999. It contains recommendations representing a consensus on international best practice, focusing on a 'hot spot stress' approach.A wide range of joint types is covered, the new fatigue design curve for both RHS and CHS is dealt with and detailed values for stress concentration factors are provided.The purpose of this current IIW document is to serve both as an International Standards Organisation (ISO) draft specification and as a model standard for national and regional specifications worldwide.The Recommendations (Part one) and Commentary (Part two) were edited by Dr X-L Zhao of Monash University, Australia and Professor J A Packer of the University of Toronto, Canada.