Modelling and fatigue life assessment of orthotropic bridge deck details using FEM
Source abstract
Abstract
The fatigue life estimation of orthotropic steel bridge decks using the finite element method is most frequently associated with the application of the structural hot spot stress approach or the effective notch stress approach, rather than the traditional nominal stress approach. The application of these approaches to a welded joint with cut-out holes in orthotropic bridge decks, where it is not easy to distinguish the non-linear stress caused by the notch at the weld toe from the stress concentration effect emanating from the hole in the detail, was investigated. The results of the finite element calculations were compared with the results of the fatigue tests which were carried out on full-scale specimens. The results of the finite element analyses revealed that the structural hot spot stresses obtained from the shell element models were unrealistically high when the welds were omitted. Moreover, the way in which the welds were represented had a substantial influence on the magnitude of the hot spot stress. The results of the analysis when using the effective notch stress approach showed that the agreement between the estimated fatigue life using this approach and the fatigue life obtained from the fatigue tests was good.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Structural Integrity and Reliability Analysis · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Kolstein KH. Fatigue Classification of welded Joints in Orthotropic Steel Bridge Decks Ph.D. Dissertation, Delft University of Technology. The Nederlands; 2007.
2. Fatigue strength of cope hole details in steel bridges10.1016/S0142-1123(97)85727-1 ↗
3. Stress analyses and fatigue evaluation of rib-to-deck joints in steel orthotropic decks10.1016/j.ijfatigue.2007.10.008 ↗
4. Al-Emrani M. Fatigue-critical details in steel bridges (in Swedish). Department of structural engineering, chalmers university of technology. Report 2006:7; 2006.
5. The new IIW recommendations for fatigue assessment of welded joints and components10.1016/j.ijfatigue.2008.04.002 ↗
6. Eurocode3. En-1993-1-9. Eurocode 3: design of steel structures – Part 1-9: Fatigue. Eurocode; 2005.
7. Fricke W. Evaluation of hot spot stresses in complex welded structures. In: Proceedings of the IIW fatigue seminar, commission XIII, international institute of welding. Tokyo, Japan; 2002.
8. Comparative fatigue strength assessment of a structural detail in a containership using various approaches of classification societies10.1016/S0951-8339(01)00016-8 ↗
9. Niemi E, Marquis G. Introduction to the structural stress approach to fatigue analysis of plate structures. In: Proceedings of the IIW fatigue seminar; Tokyo: Tokyo Institude of Technology; 2002. p. 73–90.
10. Niemi E. Stress determination for fatigue analysis of welded components. IIW doc. IIS/IIW-1221-93, The Iternational Institute of Welding, Abington Publishing; Cambridge, England; 1995.
11. Aygül M, Al-Emrani M, Frýba L, Urushadze S. Evaluation of the fatigue strength of an orthotropic bridge deck detail using hot spot stress approach. In: 63rd annual assembly & international conference of the international institute of welding, AWST-10/63; Istanbul, Turkey; 2010. p. 261–8.
12. A structural stress definition and numerical implementation for fatigue analysis of welded joints10.1016/S0142-1123(01)00055-X ↗
13. Dong P, Hong JK. Analysis of hot spot stress and alternative structural stress methods. In: The 22nd international conference on offshore mechanics and artic engineering. vol. 3. 2003. p. 213–24.10.1115/OMAE2003-37315 ↗
14. Dong P, Hong JK, Cao Z. Structural stress based master S–N curve for welded joints. IIW Doc. XIII -1930-02/XV-1119-02, 55th annual assembly of international institute of welding; Copenhagen, Denmark; 2002, p. 24.
15. A method of determining geometric stress for fatigue strength evaluation of steel welded joints10.1016/j.ijfatigue.2004.05.001 ↗
16. Radaj D, Sonsino CM, Fricke W. Fatigue assessment of welded joints by local approaches. 2. Ed. Woodhead Publishing, Cambridge; 2006.10.1533/9781845691882 ↗
17. Hobbacher A. Recommendation for fatigue design of welded joints and components. The international Institute of Welding, IIW-1823-07 ex. XIII-2151r4-07/XV-1254r4-07. Cambridge, England; 2008.
18. New approach to the numerical fatigue-life prediction of spot-welded structures10.1046/j.1460-2695.2000.00316.x ↗
19. Sonsino CM. A consideration of allowable equivalent stresses for fatigue design of welded joints according to the notch stress concept with the reference radii rref=1.00 and 0.05mm. Welding in the World. 2009. p. 53.10.1007/BF03266705 ↗
20. Notch stress concepts for the fatigue assessment of welded joints – Background and applications10.1016/j.ijfatigue.2010.04.011 ↗
21. Recent developments in local concepts of fatigue assessment of welded joints10.1016/j.ijfatigue.2008.05.019 ↗
22. Eriksson · 2003
23. Fatigue design criterion for welded structures10.1111/j.1460-2695.1996.tb01317.x ↗
24. Recommended hot spot analysis procedure for structural details of FPSO’s and ships based on Round–Robin FE analyses
25. Fatigue of high strength steel joints welded with low temperature transformation consumables10.1016/j.engfailanal.2009.02.013 ↗
26. Residual stress effects on fatigue life of welded structures using LEFM10.1016/j.engfailanal.2008.06.017 ↗
27. Fricke W. Guideline for the fatigue assessment by notch stress analysis for welded structures. The international institute of welding. IIW Doc. XIII-2240-08/XV-1289-08; 2008.
28. Fatigue assessment of large-size welded joints based on the effective notch stress approach10.1016/j.ijfatigue.2007.11.012 ↗