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- Title
Fatigue strength assessment of cover plate joints subjected to axial and bending loading.
- Authors
Håkansson, Joel; Zhu, Jinchao; Barsoum, Imad; Khurshid, Mansoor
- Abstract
This study investigates stress‐based fatigue assessment methods to determine their applicability to welded cover plate joints subject to axial and bending loading. The nominal stress (NS), hot spot stress (HSS), 1 mm stress (OM), effective notch stress (ENS), theory of critical distances (TCD), and stress averaging (SA) methods are covered, and their accuracy and reliability are evaluated. To the best of the authors' knowledge, there is limited fatigue test data available for cover plate joints subjected to bending loading. In this study, fatigue tests are performed with cover plate joints under axial and bending loading. Evaluation of the fatigue assessment methods is based on the test results. It is observed that for axial loading, the ENS and OM method have the highest accuracy. For bending, the OM method is non‐conservative, and the other methods are overly conservative. Using design curves recommended for thin‐walled welded joints subjected to bending highly improves accuracy. Highlights: This study evaluates fatigue strength assessment methods in terms of accuracy and reliability.This study provides a better understanding about cover plate joints in bending.New test data are generated for high strength steel cover plate joints in axial and bending load.Fatigue strength classes are recommended based on experiments.
- Subjects
FATIGUE limit; AXIAL loads; HIGH strength steel; BENDING strength; FATIGUE testing machines
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2023, Vol 46, Issue 5, p1947
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.13975