|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Computational Materials Engineering for Nuclear Reactor Applications
||Coupled PWR Oxidation Modeling with the HOGNOSE Code
||Andrew Dykhuis, Michael P. Short
|On-Site Speaker (Planned)
One of the main threats to fuel rod integrity in pressurized water reactors (PWRs) is corrosion, including CRUD induced localized corrosion (CILC). A model that accurately predicts Zircaloy oxidation (including CILC) must capture the mechanisms and processes that influence it. The authors have therefore developed a finite-element model of Zircaloy corrosion in PWRs to provide a truly localized corrosion simulation tool. Written using the MOOSE framework, HOGNOSE simulates the growth of the oxide and its microstructural evolution by differentiating between both protective and transparent oxides, through consideration of spatially dependent stress fields within the oxide, and with a formulation utilizing variable oxygen diffusivity. Successful coupling to INL's BISON code represents an important connection to the engineering scale, and coupling to CASL's MAMBA-BDM provides a means to investigate CILC on a detailed level. Additionally, model development is supported by ongoing experimental work to further inform and validate HOGNOSE.
||Planned: A print-only volume