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Structural reliability assessment of cracked pipes: The role of probability of detection data
Author(s) -
Mussini Rodolfo,
Cancela Héctor,
Clarke Thomas
Publication year - 2019
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12941
Subject(s) - reliability (semiconductor) , reliability engineering , identification (biology) , structural reliability , failure assessment , process (computing) , engineering , computer science , structural engineering , probabilistic logic , finite element method , artificial intelligence , power (physics) , botany , physics , quantum mechanics , biology , operating system
The structural reliability of industrial pipes, including those in the nuclear, oil, and gas industries, has a significant impact on the safety of people and the environment. This work aims to develop a computational structural reliability model method in conjunction with the failure assessment diagram method and the user‐defined probability of detection curves of non‐destructive testing are used. The concept of “reliability factor of a repair” is proposed. Then, the effects of the pipe inspection considering different user‐defined probability of detection curves and different values of the reliability factor of a repair on probability of failure are discussed. The main results include the identification of cases where performing repairs do not guarantee an improved reliability, as well as the consequences of considering the repair as a “perfect process” which result in non‐conservative assessments.