Fatigue reliability analysis in time domain for inspection strategy of fixed offshore structures

The paper describes a methodology for estimation of reliability of fixed of fshore structures with respect to fatigue and extreme stress. The failure c riteria for fatigue are formulated using fracture mechanics principle and t hat for extreme stress using API Code. Advanced Second Moment method is use d to find the reliability index. The total life of the structure is divided into a set of stationary sea-states, occurring during storms and described by directional power spectrum. The method has been illustrated through app lication to a typical jacket platform. Usefulness of the methodology for pl anning in-service inspections has been highlighted. (C) 1999 Elsevier Scien ce Ltd. All rights reserved.