Round robin study on local stress and fatigue assessment of lap joints and doubler plates

Journal
Ships and offshore structures  
Volume
8
Issue
6
Start Page
621
End Page
627
Citation
Ships and Offshore Structures 6 (8): 621-627 (2013)
Publisher DOI
10.1080/17445302.2012.762727
Scopus ID
2-s2.0-84888006836
Publisher
Taylor and Francis
The fatigue assessment of welded ship structures includes high uncertainties. One source of uncertainty is the determination of relevant local stresses. To quantify the uncertainties and to improve the analysis guidelines, round robin studies were performed within the Network of Excellence on Marine Structures (MARSTRUCT) project. One recent study concerned load-carrying fillet welds, which are treated in different ways in structural stress approaches. In total, five partners participated in the work. Two structural configurations of 12 mm thick plates were analysed, that is, double-sided lap joints and doubler plates, each with two different weld throat thicknesses (2.5 mm and 7 mm). Differences in the results were identified and conclusions were drawn with respect to modelling guidelines and typical scatter of computed fatigue lives. © 2013 Taylor & Francis.
Subjects
fatigue assessment
FEM
load carrying fillet welds
notch stress
round robin
structural stress
welded joint
DDC Class
600: Technik
620: Ingenieurwissenschaften