Publications

Yeter, B., Garbatov, Y. and Guedes Soares, C. (2015), “Fatigue crack growth analysis of a plate accounting for retardation effect”, Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor & Francis Group, London, UK, pp. 585-594

This work presents a fatigue crack analysis of plate accounting for the retardation effect under spectrum loading. In a harsh environment, an offshore wind support vessel can encounter possible freak waves. This overloading condition is investigated over a centre-cracked plate and its retarding effect on the fatigue crack growth is estimated. The Wheeler and Willenborg retardation models are employed to analyse the crack growth through the cycle-by-cycle analysis. The retardation effect is studied accounting for the magnitude, the time interval and the cycle sequence. An equivalent stress is estimated that can be used for a design purpose for each load case studied here. The result of this study may be employed to set a framework for an optimal maintenance planning for cracked structural details.

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