Fatigue crack growth under remote and local compression – a state-of-the-art review

There is an ever increasing need for accurate understanding of the fatigue crack growth behaviour\udin major engineering materials and components. With the move towards more complex, probabilistic\udassessments, the traditional ‘safe’ or conservative approach for prediction of fatigue crack growth rate may no\udlonger be attractive. Current codes and standards tend to be ambiguous about the treatment of compressive\udstress cycles: on the one hand code guidance on fatigue crack initiation may be non-conservative, while\udassessment of crack propagation may be inconsistently conservative. Where codes are non-conservative they\udcould lead to dangerous assessments. The current paper provides a critical review of state-of-the-art in\udliterature and a study of current code implications