Print Email Facebook Twitter New tools for asset management of offshore wind support structures Title New tools for asset management of offshore wind support structures Author Courage, W.M.G. Dragt, R.C. Pijpers, R.J.M. Maljaars, J. Walters, C.L. van der Weijde, G.D. Publication year 2016 Abstract design driver for Offshore Wind Turbine (OWT) substructures and also has an im-pact on operational costs. During service life, inspections are required to detect fa-tigue cracks at an early stage. These cracks may need to be repaired. The costs of in-spections and repair are high for offshore structures. To reduce the cost of energy, it is worthwhile to review options to remove unnecessary conservatism in inspections and service life predictions. This paper presents three tools (models) that are un-der development in projects at TNO which aim to reduce the conservatism in fatigue estimations. These tools are respectively: (I) including load cycle history effects in the fatigue crack growth model; (II) a frac-ture toughness model that provides a bet-ter assessment of the maximum allowable crack; and (III) a probabilistic approach to determine inspection intervals based on information gathered during service life. Subject 2015 Fluid & Solid MechanicsSR - Structural Reliability SD - Structural DynamicsTS - Technical SciencesMaritime & OffshoreArchitecture and BuildingEnergy To reference this document use: http://resolver.tudelft.nl/uuid:baac3e79-3bc0-4a21-9d82-456e314fb7f3 TNO identifier 577134 Source International journal for Electricity and Heat Generation, 96 (7), 83-89 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.