Verification test problems for the calculation of probability of loss of assured safety in temperature-dependent systems with multiple weak and strong links.

Johnson, Jay Dean (ProStat, Mesa, AZ) ; Oberkampf, William Louis ; Helton, Jon Craig (Arizona State University, Tempe, AZ)

Sandia National Laboratories

关键词: Safety Engineering;    Probability;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Uncertainty-Mathematical Models.;    Calculation Methods;   

DOI  :  10.2172/887251
RP-ID  :  SAND2006-2785
RP-ID  :  AC04-94AL85000
RP-ID  :  887251

美国|英语

来源: UNT Digital Library

【 摘 要 】

Four verification test problems are presented for checking the conceptual development and computational implementation of calculations to determine the probability of loss of assured safety (PLOAS) in temperature-dependent systems with multiple weak links (WLs) and strong links (SLs). The problems are designed to test results obtained with the following definitions of loss of assured safety: (1) Failure of all SLs before failure of any WL, (2) Failure of any SL before failure of any WL, (3) Failure of all SLs before failure of all WLs, and (4) Failure of any SL before failure of all WLs. The test problems are based on assuming the same failure properties for all links, which results in problems that have the desirable properties of fully exercising the numerical integration procedures required in the evaluation of PLOAS and also possessing simple algebraic representations for PLOAS that can be used for verification of the analysis.