Steel and Composite Structures

  • 제2권5호
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  • Pages.331-354
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  • 2002
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Fatigue reliability analysis of welded joints of a TLP tether system

  • Amanullah, M. (Department of Civil Engineering, Aligarh Muslim University) ;
  • Siddiqui, N.A. (Department of Civil Engineering, Aligarh Muslim University) ;
  • Umar, A. (Department of Civil Engineering, Aligarh Muslim University) ;
  • Abbas, H. (Department of Civil Engineering, Aligarh Muslim University)
  • 투고 : 2001.09.12
  • 심사 : 2002.09.23
  • 발행 : 2002.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

Tethers of Tension Leg Platform (TLP) are a series structural system where fatigue is the principal mode of failure. The present study is devoted to the fatigue and fatigue fracture reliability study of these tethers. For this purpose, two limit state functions have been derived. These limit state functions are based on S-N curve and fracture mechanics approaches. A detailed methodology for the reliability analysis has then been presented. A sensitivity analysis has been carried out to study the influence of various random variables on tether reliability. The design point, important for probabilistic design, is located on the failure surface. Effect of wind, water depth, service life and number of welded joints are investigated. The effect of uncertainties in various random variables on tether fatigue reliability is highlighted.

키워드

참고문헌

  1. Chao, R. and Ayyub, B. M. (1997), "Reliability and uncertainty evaluation for longitudinal bending of hull girders of surface ships", J. Ship Research, 41(1), 57-68.
  2. Kjerengtroen, L. and Wirsching, H. (1984), "Structural reliability analysis of series system", J. Struct. Eng., ASCE, 110(7), 1495-1511. https://doi.org/10.1061/(ASCE)0733-9445(1984)110:7(1495)
  3. Kung and Wirsching (1992), "Fatigue and fracture reliability and maintainability of TLP tendons", OMAE, Safety and Reliability, ASME, vol. II, 15-21.
  4. Wirsching, P. H. and Chen, Y. N. (1987), "Fatigue design criteria for TLP tendons", J. Struct. Eng., ASCE, 113(7), 1398-1414. https://doi.org/10.1061/(ASCE)0733-9445(1987)113:7(1398)
  5. Paris, P. C. (1964), The fracture mechanics approach to fatigue. In: Burke JJ, Reed NL, Weiss V, editors. Fatigue and interdisciplinary approach. Syracuse, New York: Syracuse University Press, 107-132.
  6. Madsen, H. O., Krenk, S. and Lind, N. C. (1986), Methods of Structural Safety. Prentice-Hall, Eaglewood Cliffs, NJ.
  7. Siddiqui, N. A. and Ahmad, S. (1999), "Fatigue reliability analysis of TLP tethers under random wave and wind loading", Proceedings of the 11th ISME conference on Mechanical Engineering, IIT Delhi, 208-215.
  8. Siddiqui, N. A. and Ahmad, S. (2000), "Reliability analysis against progressive failure of TLP tethers in extreme tension," Reliability Engineering and System Safety (RESS), 68(3), 195-205. https://doi.org/10.1016/S0951-8320(00)00008-9
  9. Siddiqui, N. A. and Ahmad, S. (2001), "Fatigue and fracture reliability of TLP tethers under random loading", Marine Structures, 14(3), 331-352. https://doi.org/10.1016/S0951-8339(01)00005-3
  10. Torng, T. Y. and Wirsching, P. H. (1991), "Fatigue and fracture reliability and maintainability process", J. Struct. Eng., ASCE, 117(12), 3804-3822. https://doi.org/10.1061/(ASCE)0733-9445(1991)117:12(3804)

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