Influence of Nonlinear Hydrodynamic Response on the Fatigue Damage of a FOWT: Development of Method to Assess Hydrodynamic Nonlinear Response of a FOWT, Having Allowance for Platform-Turbine Coupling Effects and Combined Wind and Wave Loads.

A method has been developed with which the rigid-body motions, stress and fatigue damage response of a TLP-type FOWT are determined in time domain, with the aim of assessing the influence of non-linear hydrodynamic response on the fatigue damage. The dynamics are described by means of a system of coupled 6DOF-EoMs and solved in Matlab, after...

Confused sea-state induced fatigue: Joint swell and wind seas induced multiaxial stresses: the influence of confused sea-state induced multiaxial stress-states on fatigue damage of a USCG cutter.

Marine structures are mostly exposed to mild and moderate sea-states, where the structural response is elastic. Characteristics of environmental loading are highly stochastic in nature, resulting in stress-states that might be multiaxial. This thesis attempts to identify the source and effect of these multiaxial stress-states on fatigue damage...