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The aim of this paper is to propose an approach to address time-variant reliability problems using system reliability
methods. The remaining challenge in time-variant reliability is related to problems with low failure probabilities,
high dimensionality, and including costly-to-evaluate performance functions. One of the main steps towards resolving time-dependent problems is to descretize the desired time interval.
This step creates a similarity between time-variant and system reliability problems. Therefore efficient system reliability
methods can be used to address time-variant reliability problems. AK-SYS is an efficient reliability method for systems that can be employed
for performance functions that are expensive to evaluate. In this paper, application of this method for time-variant reliability
problems is investigated.
