Paper Info
Title
Effect of delayed link failure on probability of loss of assured safety in temperature-dependent systems with multiple weak and strong links
Abstract
Weak link (WL)/strong link (SL) systems constitute important parts of the overall operational design of high-consequence systems, with the SL system designed to permit operation of the system only under intended conditions and the WL system designed to prevent the unintended operation of the system under accident conditions. Degradation of the system under accident conditions into a state in which the WLs have not deactivated the system and the SLs have failed in the sense that they are in a configuration that could permit operation of the system is referred to as loss of assured safety. The probability of such degradation conditional on a specific set of accident conditions is referred to as probability of loss of assured safety (PLOAS). Previous work has developed computational procedures for the calculation of PLOAS under fire conditions for a system involving multiple WLs and SLs and with the assumption that a link fails instantly when it reaches its failure temperature. Extensions of these procedures are obtained for systems in which there is a temperature-dependent delay between the time at which a link reaches its failure temperature and the time at which that link actually fails.
Year
DOI
Venue
2009
10.1016/j.ress.2008.03.007
Reliability Engineering & System Safety
Keywords
DocType
Volume
Aleatory uncertainty,Competing failure,Competing risk,Delayed failure,Fire environment,High-consequence system,Probability of loss of assured safety,Reliability,Strong link,Weak link
Journal
94
Issue
ISSN
Citations 
2
0951-8320
0
PageRank 
References 
Authors
0.34
2
3
Name
Order
Citations
PageRank
Jon Helton140988.62
Jay D. Johnson226034.81
William Oberkampf3495.06