FATIGUE ANALYSIS OF OFFSHORE STRUCTURES

As the offshore industry moves into deeper water, the dynamic behavior of structures becomes a very important parameter in the overall design procedures. In particular, the cyclic nature of wave loads has a significant effect on the fatigue life of the structure. This paper presents a procedure for fatigue analysis where the dynamic response of the structure is analyzed through a spectral approach. The sea waves which constitute the forcing function acting on the structure are represented as energy spectra; the response is obtained in spectral terms and is subsequently interpreted according to probabilistic concepts. Part of this study has considered the characteristics of the distribution of the response. In the approach to fatigue analysis one assumes that the peaks of the response follow a Rayleigh distribution.

  • Corporate Authors:

    American Society of Mechanical Engineers

    Three Park Avenue
    New York, NY  USA  10016-5990
  • Authors:
    • Wallis, J R
    • Bayazitoglu, Y O
    • Mangiavacchi, A
    • Chapman, F M
  • Publication Date: 1979-12

Media Info

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Filing Info

  • Accession Number: 00316429
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 27 1980 12:00AM