Corrosion Fatigue
Author : T. W. Crooker
Publisher : ASTM International
Page : 552 pages
File Size : 14,1 MB
Release : 1983
Category : Science
ISBN : 9780803102453
Design and Analysis of Fatigue Resistant Welded Structures
Author : Dieter Radaj
Publisher : Woodhead Publishing
Page : 386 pages
File Size : 27,45 MB
Release : 1990-01-03
Category : Medical
ISBN : 9781855730045
Book Description
An English version of a sucessful German book. Both traditional and modern concepts are described.
Fracture and Fatigue of Welded Joints and Structures
Author : K Macdonald
Publisher : Elsevier
Page : 353 pages
File Size : 29,81 MB
Release : 2011-04-19
Category : Technology & Engineering
ISBN : 0857092502
Book Description
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
IIW Recommendations for the HFMI Treatment
Author : Gary B. Marquis
Publisher : Springer
Page : 44 pages
File Size : 34,34 MB
Release : 2016-09-29
Category : Technology & Engineering
ISBN : 9811025045
Book Description
This book of recommendations presents an overview of High Frequency Mechanical Impact (HFMI) techniques existing today in the market and their proper procedures, quality assurance measures and documentation. Due to differences in HFMI tools and the wide variety of potential applications, certain details of proper treatments and quantitative quality control measures are presented generally. An example of procedure specification as a quality assurance measure is given in the Appendix. Moreover, the book presents procedures for the fatigue life assessment of HFMI-improved welded joints based on nominal stress, structural hot spot stress and effective notch stress. It also considers the extra benefit that has been experimentally observed for HFMI-treated high-strength steels. The recommendations offer proposals on the effect of loading conditions like high mean stress fatigue cycles, variable amplitude loading and large amplitude/low cycle fatigue cycles. Special considerations for low stress concentration welded joints are also given. In order to demonstrate the use of the guideline, the book provides several fatigue assessment examples.
Fatigue Strength of Welded Structures
Author : S J Maddox
Publisher : Woodhead Publishing
Page : 216 pages
File Size : 36,80 MB
Release : 1991-01-15
Category : Technology & Engineering
ISBN : 9781855730137
Book Description
This new edition encompasses the latest research and particularly the recent standards. The text will be of value to welding engineers and designers, medium to large companies and technical libraries.
IIW Recommendations for the Fatigue Assessment of Welded Structures By Notch Stress Analysis
Author : W Fricke
Publisher : Woodhead Publishing
Page : 76 pages
File Size : 24,25 MB
Release : 2012-10-22
Category : Technology & Engineering
ISBN : 085709856X
Book Description
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
Recommendations for Fatigue Design of Welded Joints and Components
Author : A. F. Hobbacher
Publisher : Springer
Page : 153 pages
File Size : 18,67 MB
Release : 2015-12-23
Category : Technology & Engineering
ISBN : 3319237578
Book Description
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
Author : P J Haagensen
Publisher : Woodhead Publishing
Page : 90 pages
File Size : 45,43 MB
Release : 2013-01-25
Category : Technology & Engineering
ISBN : 1782420657
Book Description
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
Fracture and Fatigue Emanating from Stress Concentrators
Author : G. Pluvinage
Publisher : Springer Science & Business Media
Page : 238 pages
File Size : 18,58 MB
Release : 2003-12-31
Category : Technology & Engineering
ISBN : 1402016093
Book Description
A vast majority of failures emanate from stress concentrators such as geometrical discontinuities. The role of stress concentration was first highlighted by Inglis (1912) who gives a stress concentration factor for an elliptical defect, and later by Neuber (1936). With the progress in computing, it is now possible to compute the real stress distribution at a notch tip. This distribution is not simple, but looks like pseudo-singularity as in principle the power dependence with distance remains. This distribution is governed by the notch stress intensity factor which is the basis of Notch Fracture Mechanics. Notch Fracture Mechanics is associated with the volumetric method which postulates that fracture requires a physical volume. Since fatigue also needs a physical process volume, Notch Fracture Mechanics can easily be extended to fatigue emanating from a stress concentration.
Fatigue Assessment of Welded Joints by Local Approaches
Author : Dieter Radaj
Publisher : Woodhead Publishing
Page : 661 pages
File Size : 42,2 MB
Release : 2006-10-30
Category : Technology & Engineering
ISBN : 1845691881
Book Description
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
