Citation:
W. Huang,Y. Garbatov and C. Guedes Soares.Fatigue Reliability Assessment of Correlated Welded Web-frame Joints[J].Journal of Marine Science and Application,2014,(1):23-31.[doi:10.1007/s11804-014-1228-z]
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Fatigue Reliability Assessment of Correlated Welded Web-frame Joints
W. Huang,Y. Garbatov and C. Guedes Soares.Fatigue Reliability Assessment of Correlated Welded Web-frame Joints[J].Journal of Marine Science and Application,2014,(1):23-31.[doi:10.1007/s11804-014-1228-z]
Info
- Title:
- Fatigue Reliability Assessment of Correlated Welded Web-frame Joints
- Author(s):
- W. Huang; Y. Garbatov and C. Guedes Soares
- Affilations:
- Keywords:
- fatigue reliability; hotspot stress; S-N approach; finite element analysis; web-frame joints
- DOI:
- 10.1007/s11804-014-1228-z
- Abstract:
- The objective of this work is to analyze the fatigue reliability of complex welded structures composed of multiple web-frame joints, accounting for correlation effects. A three-dimensional finite element model using the 20-node solid elements is generated. A linear elastic finite element analysis was performed, hotspot stresses in a web-frame joint were analyzed and fatigue damage was quantified employing the S-N approach. The statistical descriptors of the fatigue life of a non-correlated web-frame joint containing several critical hotspots were estimated. The fatigue reliability of a web-frame joint wasmodeled as a series system of correlated components using the Ditlevsen bounds. The fatigue reliability of the entire welded structure with multiple web-frame joints, modeled as a parallel system of non-correlated web-frame joints was also calculated.
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Memo
- Memo:
- Supported by the RISPECT-SCP7-GA-2008-218499
