PSI - Issue 5

Ahmed Bahloul et al. / Procedia Structural Integrity 5 (2017) 430–437

435

Ahmed Bahloul et al. / Structural Integrity Procedia 00 (2017) 000 – 000

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R=0.5). The suggested approach exhibits good ability in predicting fatigue crack growth life of the cracked attachment lugs comparing with experimental results [Kathiresan and Hsu (1984)].The obtained iso probabilistic a-N curves are very useful in engineering application for evaluating FCG life with an acceptable confidence level. These curves can be used as a practical tool to ensure an optimal maintenance planning for cracked components. The proposed engineering approach consist in improving the deterministic models by considering the effect of residual stress distribution near crack tip and material dispersions, leading to predict the residual FCG life in more efficient and reliable way.