Actions for Demands placed on waste package performance testing and modeling by some general results on reliability analysis [electronic resource].

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Demands placed on waste package performance testing and modeling by some general results on reliability analysis [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
10 pages : digital, PDF file
Additional Creators
Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Waste packages for a US nuclear waste repository are required to provide reasonable assurance of maintaining substantially complete containment of radionuclides for 300 to 1000 years after closure. The waiting time to failure for complex failure processes affecting engineered or manufactured systems is often found to be an exponentially-distributed random variable. Assuming that this simple distribution can be used to describe the behavior of a hypothetical single barrier waste package, calculations presented in this paper show that the mean time to failure (the only parameter needed to completely specify an exponential distribution) would have to be more than 10₇ years in order to provide reasonable assurance of meeting this requirement. With two independent barriers, each would need to have a mean time to failure of only 10⁵ years to provide the same reliability. Other examples illustrate how multiple barriers can provide a strategy for not only achieving but demonstrating regulatory compliance.
Report Numbers
E 1.99:ucrl-jc--106758
E 1.99: conf-910945--15
conf-910945--15
ucrl-jc--106758
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
09/01/1991.
"ucrl-jc--106758"
" conf-910945--15"
"DE92016156"
Focus `91: nuclear waste packaging, Las Vegas, NV (United States), 29 Sep - 4 Oct 1991.
Chesnut, D.A.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14114938