Estimating the Fatigue Life of a Fixed Metal Platform with a different Approach

Nemati Havigh, Sajed; Behdarvandi Askar, Mehdi

doi:10.22034/ijcoe.2025.341052.0

Estimating the Fatigue Life of a Fixed Metal Platform with a different Approach

Document Type : Original Research Article

Authors

sajed nemati havigh ¹

mehdi behdarvandi askar ²

¹ Graduated of Marine Structures, Department of Offshore Structures, Faculty of Marine Engineering, Khorramshahr University of Marine Science and Technology

² Assistant Professor, Department of Offshore Structures, Faculty of Marine Engineering, Khorramshahr University of Marine Science and Technology

10.22034/ijcoe.2025.341052.0

Abstract

Offshore platforms are among the important structures in the energy industry and play a significant role in the economies of countries. One of the most important factors in the sudden failure, as well as the reduction of the strength of the offshore platforms, in the long run, is the fatigue phenomenon in connections and members of the structure. Acceptable consistency in comparison to each other.The present study reviews the conventional methods of fatigue analysis of marine structures and seeks to introduce an effective way to estimate the fatigue life. Since the natural period of is an important factor for analysing of structures, it has also been investigated. Even though the recommendation of the regulations in all of states, is the use of the spectral method in fatigue analysis, but this method, despite its high accuracy, requires more time and cost compared to the deterministic analysis.

Keywords

Fatigue

Jacket

concentration

S-N curves

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