Effect of through-wall stress gradients on piping failure probabilities

M. A. Khaleel; F. A. Simonen

doi:10.1016/S0029-5493(99)00259-9

Effect of through-wall stress gradients on piping failure probabilities

M. A. Khaleel, F. A. Simonen

Research output: Contribution to journal › Conference article › peer-review

9 Scopus citations

Abstract

An approach has been developed that predicts leak and rupture probabilities of reactor piping in a structured parametric format. This approach applies the probabilistic fracture mechanics code pc-PRAISE (Piping Reliability Analysis Including Seismic Events) to address the mechanical and thermal fatigue life of piping. The probabilistic fracture mechanics model is applied to predict the relative effects of uniform stresses and through-thickness stress gradients on the reliability of stainless steel piping welds. Results generated using the numerical technique revealed that the calculated leak probabilities can be sensitive to the different types of stress gradients and to local stress concentrations.

Original language	English
Pages (from-to)	89-106
Number of pages	18
Journal	Nuclear Engineering and Design
Volume	197
Issue number	1
DOIs	https://doi.org/10.1016/S0029-5493(99)00259-9
State	Published - Apr 2 2000
Externally published	Yes
Event	ASME Pressure Vessels and Piping Conference (PVPC 97) - Orlano, FL, USA Duration: Jul 27 1997 → Jul 31 1997

Funding

The work reported in this paper was supported by the US Nuclear Regulatory Commission under Contract DE-AtC06-76RLO 1830; NRC JCN W6275; Deborah Jackson Program Monitor.

Funders	Funder number
U.S. Nuclear Regulatory Commission	NRC JCN W6275, DE-AtC06-76RLO 1830

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10.1016/S0029-5493(99)00259-9

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abstract = "An approach has been developed that predicts leak and rupture probabilities of reactor piping in a structured parametric format. This approach applies the probabilistic fracture mechanics code pc-PRAISE (Piping Reliability Analysis Including Seismic Events) to address the mechanical and thermal fatigue life of piping. The probabilistic fracture mechanics model is applied to predict the relative effects of uniform stresses and through-thickness stress gradients on the reliability of stainless steel piping welds. Results generated using the numerical technique revealed that the calculated leak probabilities can be sensitive to the different types of stress gradients and to local stress concentrations.",

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AU - Simonen, F. A.

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AB - An approach has been developed that predicts leak and rupture probabilities of reactor piping in a structured parametric format. This approach applies the probabilistic fracture mechanics code pc-PRAISE (Piping Reliability Analysis Including Seismic Events) to address the mechanical and thermal fatigue life of piping. The probabilistic fracture mechanics model is applied to predict the relative effects of uniform stresses and through-thickness stress gradients on the reliability of stainless steel piping welds. Results generated using the numerical technique revealed that the calculated leak probabilities can be sensitive to the different types of stress gradients and to local stress concentrations.

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IS - 1

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Y2 - 27 July 1997 through 31 July 1997

ER -

Effect of through-wall stress gradients on piping failure probabilities

Abstract

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