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Fatigue Analysis of Fixed Offshore Structures Subjected to Random Waves

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Computational Mechanics ’86

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Summary

In this paper, the fatigue behavior of fixed offshore structures subjected to random waves is studied. More specifically, the effect of the bandwidth of random stresses on the fatigue life estimation is investigated. The dynamic analysis is carried out in the frequency domain by using the equivalent linearization technique. Fatigue damages are calculated by two cycle counting methods; i.e., the narrow band method and the rainflow counting method. Numerical results are presented for two different structures. A direct comparison is made between the results obtained by two cycle counting methods.

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References

  1. Malhotra, A. and Penzien, J.: “Nondeterministic Analysis of Offshore Structures”, J. of Engineering Mechanics Div., ASCE, 1970.

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  2. Wirsching, P. and Light, M.: “Fatigue under Wide Band Random Stresses”, J. of the Structural Div., ASCE, 1980.

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  3. Kan, D. and Petrauskas, C.: “Hybrid Time-Frequency Domain Fatigue Analysis for Deepwater Platforms”, Proc. of Offshore Technology Conference, 1981.

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  4. Shinozuka, M., Yun, C. and Vaicaitis, R.: “Dynamic Analysis of Offshore Structures Subjected to Wind Generated Waves”, J. of Structural Mechanics, 1977.

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  5. Kuang, J., Potvin, A. and Leick, R.: “Stress Concentration in Tubular Joints”, Proc. of Offshore Technology Conference, 1975.

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Author information

Authors and Affiliations

  1. Department of Civil Engineering, Korea Advanced Institute of Science and Technology, P.O. Box 150, Cheongryang, Seoul, Korea

    Chung Bang Yun & Jeong Soo Ryu

Authors
  1. Chung Bang Yun
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  2. Jeong Soo Ryu
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Editor information

Editors and Affiliations

  1. Department of Nuclear Engineering, The University of Tokyo, 3-1, Hongo 7-chome, Bunkyo-ku, Tokyo 113, Japan

    Genki Yagawa

  2. Center for the Advancement of Computational Mechanics, School of Civil Engineering, Georgia Institute of Technology, 225, North Avenue, Atlanta, GA, 30332, USA

    Satya N. Atluri

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© 1986 Springer Japan

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Yun, C.B., Ryu, J.S. (1986). Fatigue Analysis of Fixed Offshore Structures Subjected to Random Waves. In: Yagawa, G., Atluri, S.N. (eds) Computational Mechanics ’86. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68042-0_203

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  • DOI: https://doi.org/10.1007/978-4-431-68042-0_203

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68044-4

  • Online ISBN: 978-4-431-68042-0

  • eBook Packages: Springer Book Archive

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