Linearisation and Offshore Fatigue Reliability

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by R. E. Melchers, Univ of Newcastle,
M. Ahammed, Univ of Newcastle,

Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability:

Abstract: In determining the force effects due to wave action on offshore structures it is conventional to use an equivalent linearisation to convert wave velocities to forces via Morison's equation. Different linearisations have been suggested. However, it is not, a priori, clear which is appropriate when structural fatigue is to be estimated. A (theoretical) criterion is introduced herein and examined in relation to a simple offshore structure.

Subject Headings: Offshore structures | Wave velocity | Linear functions | Fatigue (material) | Structural reliability | Wave equations | Wave action | Wave forces |

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