Reliability Modeling of an Engineered Barrier System

by Malwane M. A. Ananda, Univ of Nevada, Las Vegas, United States,
Ashok K. Singh, Univ of Nevada, Las Vegas, United States,
John A. Flueck, Univ of Nevada, Las Vegas, United States,

Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1993


The Weibull distribution is widely used in reliability literature as a distribution of time to failure, as it allows for both increasing failure rate (IFR) and decreasing failure rate (DFR) models. It has also been used to develop models for an engineered barrier system (EBS), which is known to be one of the key components in a deep geological repository for high level radioactive waste (HLW). The EBS failure time can more realistically be modelled by an IFR distribution, since the failure rate for the EBS is not expected to decrease with time. In this paper, we use an IFR distribution to develop a reliability model for the EBS.

Subject Headings: Failure analysis | System reliability | Mathematical models | Geology | Recycling | Radioactive wastes | Waste disposal | Statistics

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