Journal
THIN-WALLED STRUCTURES
Volume 160, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2020.107348
Keywords
Cast steel joint; Tubular structure; Stress concentration factors; Traction structural stress; Weld root failure; Fatigue life
Categories
Funding
- National Key R&D Program of China [2017YFC0805100]
- National Natural Science Foundation of China [51578137]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Open Research Fund Program of Jiangsu Key Laboratory of Engineering Mechanics
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This paper introduces a simplified approach for efficient fatigue life estimation of full-scale welded cast steel structures. Experimental results show that this approach is more efficient compared to the classical three-dimensional finite element-based method.
Cast steel joints (CSJ) are widely used in complex tubular structures to connect different parts of structures. This paper presents a simplified approach for efficient fatigue life estimation of full-scale welded cast steel structures. The proposed approach is applied to analyze a set of fatigue data of a full-scale CSJ thin-walled tubular truss structure. The results indicate that the fatigue lives estimated based on the simplified approach compare well with the experimental data. It is also shown that the simplified approach is much more efficient than the classical three-dimensional finite element-based method.
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