Abstract
The operating environment of nuclear reactors imposes extreme challenges on the materials from which the structures within and surrounding the reactor are constructed. Understanding the effects of exposure to this environment is critical for ensuring the safe long-term operation of these reactors. The Grizzly and BlackBear codes are being developed to model the progression of aging mechanisms and their effects on the integrity of critical structures. These codes take advantage of the capabilities of the MOOSE framework to solve the wide range of coupled physics problems that are encountered in predictive simulation of structural degradation. This paper provides an overview of these codes, with a specific focus on two capabilities relevant for light water reactor applications: reactor pressure vessel embrittlement and concrete degradation.
Original language | English |
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Pages (from-to) | 981-1003 |
Number of pages | 23 |
Journal | Nuclear Technology |
Volume | 207 |
Issue number | 7 |
DOIs | |
State | Published - 2021 |
Externally published | Yes |
Funding
This work was funded by the DOE’s Office of Nuclear Energy’s Modeling and Simulation and LWRS programs. This paper has been authored by a contractor of the U.S. Government under contract DE-AC07-05ID14517. Accordingly, the U.S. Government retains a nonexclusive, royalty free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes. This work was funded by the DOE?s Office of Nuclear Energy?s Modeling and Simulation and LWRS programs. This paper has been authored by a contractor of the U.S. Government under contract DE-AC07-05ID14517. Accordingly, the U.S. Government retains a nonexclusive, royalty free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes.
Keywords
- concrete
- reactor pressure vessel
- Structural components