Record number :
Title of article :
Verification of the calculation of probability of loss of assured safety in temperature-dependent systems with multiple weak and strong links
Author/Authors :
Helton، نويسنده , , J.C. and Johnson، نويسنده , , J.D. and Oberkampf، نويسنده , , W.L.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
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Abstract :
Two approaches to the calculation of probability of loss of assured safety (PLOAS) in temperature dependent weak link/strong link systems are described and compared on the basis of three test problems. The approaches differ in that the first approach permits a separation of epistemic and aleatory uncertainty in the calculation of PLOAS and the second approach combines epistemic and aleatory uncertainty before the calculation of PLOAS. A discrepancy in the results obtained with the test problems led to the identification of an implementation error for one of the approaches. The importance and efficacy of well-designed verification test problems are demonstrated.
Keywords :
Fire environment , High consequence system , Probability of loss of assured safety , Verification , Weak link , Competing risk , epistemic uncertainty , Reliability , Strong link , Competing failure , Aleatory uncertainty
Journal title :
Reliability Engineering and System Safety
Link To Document :