Abstract
Either of two methods, probabilistic-based or deterministic-based analysis, can be used in estimation of the conditional probability of flaw growth initiation and failure for reactor vessel having multiple flaws. The probabilistic-based method forms the basis for probabilistic fracture mechanism (PFM) calculations, such as the recent pressurized thermal shock (PTS) studies by the U.S. Nuclear Regulatory Commission (NRC) and the code FAVOR developed by the Oak Ridge National Lab (ORNL). In this paper, a simplified comparison is performed to show that deterministic based method used in the PFM analysis of PTS yields the same crack initiation and vessel failure probabilities as the probabilistic-based method. This paper discusses these methods and shows that the final results of the two methods are identical. Also, it discusses that the underlying bases of the two methods are the same. (author)
Fang, Tong;
[1]
Modarres, Mohammad
[2]
- Center for Technology Risk Studies, University of Maryland, College Park, MD (United States)
- University of Maryland, College Park, MD (United States)
Citation Formats
Fang, Tong, and Modarres, Mohammad.
Probabilistic and deterministic treatments for multiple flaws in reactor pressure vessel safety analysis.
Czech Republic: N. p.,
2003.
Web.
Fang, Tong, & Modarres, Mohammad.
Probabilistic and deterministic treatments for multiple flaws in reactor pressure vessel safety analysis.
Czech Republic.
Fang, Tong, and Modarres, Mohammad.
2003.
"Probabilistic and deterministic treatments for multiple flaws in reactor pressure vessel safety analysis."
Czech Republic.
@misc{etde_20628469,
title = {Probabilistic and deterministic treatments for multiple flaws in reactor pressure vessel safety analysis}
author = {Fang, Tong, and Modarres, Mohammad}
abstractNote = {Either of two methods, probabilistic-based or deterministic-based analysis, can be used in estimation of the conditional probability of flaw growth initiation and failure for reactor vessel having multiple flaws. The probabilistic-based method forms the basis for probabilistic fracture mechanism (PFM) calculations, such as the recent pressurized thermal shock (PTS) studies by the U.S. Nuclear Regulatory Commission (NRC) and the code FAVOR developed by the Oak Ridge National Lab (ORNL). In this paper, a simplified comparison is performed to show that deterministic based method used in the PFM analysis of PTS yields the same crack initiation and vessel failure probabilities as the probabilistic-based method. This paper discusses these methods and shows that the final results of the two methods are identical. Also, it discusses that the underlying bases of the two methods are the same. (author)}
place = {Czech Republic}
year = {2003}
month = {Jul}
}
title = {Probabilistic and deterministic treatments for multiple flaws in reactor pressure vessel safety analysis}
author = {Fang, Tong, and Modarres, Mohammad}
abstractNote = {Either of two methods, probabilistic-based or deterministic-based analysis, can be used in estimation of the conditional probability of flaw growth initiation and failure for reactor vessel having multiple flaws. The probabilistic-based method forms the basis for probabilistic fracture mechanism (PFM) calculations, such as the recent pressurized thermal shock (PTS) studies by the U.S. Nuclear Regulatory Commission (NRC) and the code FAVOR developed by the Oak Ridge National Lab (ORNL). In this paper, a simplified comparison is performed to show that deterministic based method used in the PFM analysis of PTS yields the same crack initiation and vessel failure probabilities as the probabilistic-based method. This paper discusses these methods and shows that the final results of the two methods are identical. Also, it discusses that the underlying bases of the two methods are the same. (author)}
place = {Czech Republic}
year = {2003}
month = {Jul}
}