Reliability-based fatigue analysis and design of floating structures

摘要

Floating structures are more susceptible to fatigue damage than land-based structures. Due to the large uncertainty occurring in a number of key parameters, fatigue life may be modeled as a random variable, and thus safety against fatigue failures can be systematically evaluated in terms of probability. A technical procedure for a reliability-based approach to fatigue analysis and fatigue-resistant design has been developed. It assumes that random loading can be modeled with beta distribution and fatigue is characterize by an SN relationship.