Structural Engineering and Mechanics

  • 제4권4호
  • /
  • Pages.347-364
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  • 1996
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Linear fracture envelopes for fatigue assessment of welds in bridges

  • Ghosh, A. (Department of Civil and Environmental Engineering, University of Adelaide) ;
  • Oehlers, D.J. (Department of Civil and Environmental Engineering, University of Adelaide) ;
  • Wahab, M.A. (Department of Mechanical Engineering, University of Adelaide)
  • 발행 : 1996.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Presently welded components are designed using S/N curves which predict only the fatigue life of the component. In order to ascertain the condition of the weld at any intermediate period of its life inspection is carried out. If cracks are detected in a weld fracture mechanics is used to find their remaining life. A procedure for assessment is developed here that can be used to verify the condition of a weld before inspection is carried out to detect cracks. This simple method has been developed using linear fracture envelopes by combining S/N curves with linear elastic fracture mechanics.

키워드

참고문헌

  1. Ahlskog, J.J. (1990), "Bridge Management-The answer to the challenge", Bridge Evaluation, Repair and Rehabilitation. A.S. Nowak. Kluwer Academic Publishers.
  2. Albrecht, P. and Yamada, K. (1977), "Rapid calculation of stress intensity factors", J. Strut. Engrg., ASCE, 2, 377-389.
  3. BS 5400. (1980), "Steel, concrete and composite bridges. Part 10: Code of practice for fatigue (1980)", British Standards Institution, London, U.K.
  4. BS PD 6493. (1991), "Guidance on methods for assessing the acceptability of flaws in fusion welded structures", British Standards Institution, London, U.K.
  5. Eurocode No. 3 (1992), "Common unified rules for steel structures", Commission of the European Communities, 1992, Luxembourg.
  6. Ghosh, A. Oehlers, D. J., Wahab, M. (1995), "Adapting S/N data for assessment of welded components", Australasian Conference on Mechanics and Structures of Materials, Hobart, Australia.
  7. Irwin, G.R. (1957), "Analysis of stresses and strains near the end of a crack traversing a plate", Transactions, ASME, Series E, 24(3), Sept.
  8. Maddox, S.J. (1991), Fatigus Strength of Welded Structures, Abington publishing.
  9. Oehlers, D.J. and Bradford, M.A. (1995), Composite Steel and Concrete Structural Members Fundamental Behaviour, Permagon Press, U.K.
  10. Oehlers, D.J., Ghosh, A. and Wahab, M. (1995), "A residual strength approach to fatigue design and analysis", J. Strut. Engrg, ASCE, Sept.
  11. Paris, P.C. and Erdogan, F. (1963), "A critical analysis of crack propagation laws", J. Bas. Engng. Transactions, ASME, 85, No. 4528.
  12. Rolfe, S.T. and Barsom, J. M. (1977), Fracture and Fatigue Control in Structures, Prentice-Hall, New Jersey.

피인용 문헌

  1. The Hunt for the Elusive Concept vol.13, pp.5, 2010, https://doi.org/10.1260/1369-4332.13.5.755
  2. Partial-interaction fatigue assessment of stud shear connectors in composite bridge beams vol.13, pp.4, 2002, https://doi.org/10.12989/sem.2002.13.4.455
  3. Modern Approach of Design of Welded Components Subjected to Fatigue Loading vol.130, pp.5, 2004, https://doi.org/10.1061/(ASCE)0733-9445(2004)130:5(812)