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A probabilistic fracture mechanics model of structural reliability is described that considers failure to occur as the result of subcritical and catastrophic growth of pre-existing cracks that escape detection. The model considers cracks to be two-dimensional and is capable of treating many of the input parameters as random variables and can consider arbitrary inspection schedules. Numerical results for two-dimensional cracks in a weld joint in a large reactor pipe show that the ratio of failure rates is not highly dependent on the initial crack distribution, even for this more general case. Thus, it appears that an assessment of the relative benefit of in-service inspection does not require accurate knowledge of the initial crack distribution.

Item Type	Conference
Divisions	» Laboratory of Management, Maintenance and Rehabilitation Of Facilities and Urban Infrastructure » Faculty of Science and Technology
ePrint ID	83
Date Deposited	2014-10-30
Further Information	Google Scholar
URI	https://univ-soukahras.dz/en/publication/article/83

@inproceedings{uniusa83,
    title={Reliability analysis of low alloy ferritic piping steels, B- Effect of both pre-service and in-service inspections},
    author={A. Guedri, S. Tlili, Yassine Djebbar and B. Merzoug},
    year={2009},
    booktitle={CAM2009, 16-19 Novembre2009}
}