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Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A051, July 17–22, 2022
Paper No: PVP2022-81135
... integrity of previous nuclear reactor designs has been calculated using deterministic methods, but this approach can lead to overly-conservative (or in some cases, optimistic) assessments. Probabilistic structural integrity analysis methods offer the potential to increase understanding of uncertainty...
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A055, July 17–22, 2022
Paper No: PVP2022-84742
... to radiation could lead to reactor control failure using both deterministic and probabilistic analyses. The deterministic approach determines the change in brick dimensions in a single channel using finite element analysis. Conversely, the probabilistic analysis uses a response surface surrogate Monte-Carlo...
Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T02A028, July 17–22, 2022
Paper No: PVP2022-82065
... Abstract This study outlines the application of a Reduced Order Modeling (ROM) approach for the probabilistic creep response of components subject to creep conditions. Time-dependent creep damage is unavoidably inflicted in elevated temperature. Typical operating condition fluctuations...
Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A061, July 13–15, 2021
Paper No: PVP2021-62038
...) fatigue life from the probabilistic study is fatigue crack growth rate parameters (i.e., and fitting almost identical to the fatigue life from deterministic coefficients in the Paris law) calculated from compact tension calculations for the BM cracks. The probabilistic simulation (CT) fatigue test data...
Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A040, August 3, 2020
Paper No: PVP2020-21613
... in these components. Conventional creep experiments show considerable uncertainty in the creep response of materials where scatter can span decades of creep life. The objective of this paper is to introduce the probabilistic methods into a deterministic creep-damage model in order to predict experimental uncertainty...
Proc. ASME. PVP2019, Volume 2: Computer Technology and Bolted Joints, V002T02A026, July 14–19, 2019
Paper No: PVP2019-93557
...PROBABILISTIC METHODS: RISK BASED DESIGN AND ASSESSMENT H Cathcart1, G Horne, J Parkinson, A Moffat, M Joyce Frazer-Nash Consultancy Warrington, UK ABSTRACT Structural integrity assessments typically aim to calculate the integrity of a component under nominal or best estimate conditions. To account...