兵工学报：英文版
兵工學報：英文版
병공학보：영문판
Journal of China Ordnance
2012年
2期
104-108
,共5页
safety science%strong-link%weak-link%safety evaluation%abnormal high-temperature fire environment
In an abnormal high-temperature fire environment, a structure with mechanical-thermal weak-link can be used to predict the permanent failure before the failure of some strong-links, such as explosive initiator,thus to protect the latter. An effective design can be defined as that the weak-link fails before the failure of the strong-link, and the system is safe; while an unsuccessful design means that the weak-link fails after the failure of the strong-link, and the system loses in safe- ty. The probability of safety failure exists due to the uncertain failure temperatures of the weak-link and strong-link. In order to obtain the probability of safety failure, a statistical method was used to deal with the uncertainty of the failure tem- peratures. The integral method and stochastic simulation method were used in calculations. Finally, a sample was given to verify the consistence of the results given by two methods.
