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- Fatigue design rules for welded structures (January 2000)
- Review of fatigue assessment procedures for welded aluminium structures
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- Design and Analysis of Fatigue Resistant Welded Structures
Fatigue design rules for welded structures (January 2000)
In order to establish guidelines for modelling the structure and evaluating the results, several numerical analyses have been performed in a round robin. This covers three welded details of different complexity where either the weld toe or the weld root is the potential crack location.
The first example is a cruciform joint with non-load carrying fillet welds in one load case and load carrying in the other. The third is the fillet-welded end connection of a RHS joint being prone to fatigue failure at the weld root with non-fused root faces. The results are compared with each other and conclusions are drawn with regard to appropriate modelling and to the scatter of results to be expected. This is a preview of subscription content, access via your institution.
Rent this article via DeepDyve. Radaj D. Google Scholar. IIW Doc. Hobbacher A. Morgenstern C. XIII—04, Eibl M. Anthes R. Iida K. Lehrke H. Kyuba H. Niemi E. Fricke W. Download references. Reprints and Permissions.
Fricke, W. Weld World 51, 68—79 Download citation. Published : 07 February Issue Date : March Search SpringerLink Search. References  Radaj D. Fricke Authors W. Fricke View author publications. Rights and permissions Reprints and Permissions. About this article Cite this article Fricke, W.
Review of fatigue assessment procedures for welded aluminium structures
Fatigue strength and reliability assessment of complex double hull oil tanker structures, based on different local structural finite element approaches, is performed accounting for the uncertainties originating from load, nominal stresses, hot spot stress calculations, weld quality estimations and misalignments and fatigue S-N parameters including the correlation between load cases and the coating life and corrosion degradation. Ship hull wave-induced vertical and horizontal bending moments and pressure are considered in the analysis. Stress analyses are performed based on the nominal, local hot spot and notch stress approaches. A linear elastic finite element analysis is used to determine the stress distribution around the welded details and to estimate structural stresses of all critical locations. Fatigue damage is estimated by employing the Palmgren-Miner approach. The importance of the contribution of each random variable to the uncertainty of the fatigue limit state function is also estimated.
Published in: Progress in Structural Engineering and Materials, vol. The use of fatigue design rules offers the most effective means of avoiding fatigue failures in welded structures. This paper outlines the basis of current rules and how they are applied in different specifications, including consideration of residual stresses, size effect, material, welding process and environment. Areas needing further research are highlighted, including future development of the hot spot stress approach, the treatment of complex loading and cumulative damage calculations. A previous contribution to this journal  covered some of this ground with particular reference to tubular structures. This paper deals with more general aspects, related to any welded structure. Specific values of the slopes of the S-N curves are sometimes imposed.
In order to establish guidelines for modelling the structure and evaluating the results, several numerical analyses have been performed in a round robin. This covers three welded details of different complexity where either the weld toe or the weld root is the potential crack location. The first example is a cruciform joint with non-load carrying fillet welds in one load case and load carrying in the other. The third is the fillet-welded end connection of a RHS joint being prone to fatigue failure at the weld root with non-fused root faces. The results are compared with each other and conclusions are drawn with regard to appropriate modelling and to the scatter of results to be expected. This is a preview of subscription content, access via your institution. Rent this article via DeepDyve.
Design and Analysis of Fatigue Resistant Welded Structures. A volume in Woodhead Publishing Series in Welding and Other Joining Technologies. Book •
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By Dieter Radaj. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Jointing components by welding is the most widespread manufacturing method for metal structures. It provides an almost infinite number of design variants.
Design and Analysis of Fatigue Resistant Welded Structures
Background: Stresses in welds. Methods for calculating critical weld stresses. Random vibration fatigue analysis. Analysis description: Selection of weld stress approach. Supported and excited at two holes. Fillet welds along intersection of components. Local discontinuities.
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Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. Martinsson Published Engineering. To improve the usage of material in fatigue loaded complex welded structures a better calculation method based on FEA is needed than what is available on the market and an improved management of Save to Library.
Fatigue strength for infinite life of welded joints in structural steel; Fatigue strength for finite life and service fatigue strength of welded joints; Fatigue strength of welded joints in high tensile steels and aluminium alloys; Fatigue strength of welded components, design improvements; Fatigue strength of spot, friction, flash butt and stud welded joints; Design codes, assessment of nominal and structural stress; Notch stress approach for assessment of fatigue strength of seam welded joints; Fracture mechanics approach for assessment of fatigue strength of seam welded joints; Structural stress, notch stress and stress intensity approach for assessment of fatigue strength of spot welded joints; Corrosion and wear resistance of welded joints; Example for the development of a fatigue resistant welded structure.
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Беккер все же надеялся, что в клинике осталась какая-то регистрационная запись - название гостиницы, где остановился пациент, номер телефона, по которому его можно найти. Если повезет, он разыщет канадца, получит кольцо и тут же вернется домой. Если потребуется, заплатите за это кольцо хоть десять тысяч долларов. Я верну вам деньги, - сказал ему Стратмор.