Coupled Physics Simulation of Expansive Reactions in Concrete with the Grizzly Code

  • Benjamin W. SpencerEmail author
  • Hai Huang
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


The Grizzly code is being developed under the US Department of Energy’s Light Water Sustainability program as a tool to model aging mechanisms and their effects on the integrity of critical nuclear power plant components. An important application for Grizzly is the modeling of aging in concrete structures, which can be due to a number of mechanisms. Initial focus in this area has been on modeling expansive reactions due to alkali-silica reactions or radiation-induced volumetric expansion. Grizzly is an inherently multiphysics modeling platform that naturally permits including the effects of multiple coupled physics in a simulation. Models have been developed for transport of heat and moisture in concrete, and these have been coupled and used as inputs to models for expansive reactions. This paper summarizes this capability, and demonstrates it on a representative structure.


Concrete Alkali-silica reaction Multiphysics simulation 


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Fuels Modeling and SimulationIdaho National LaboratoryIdaho FallsUSA
  2. 2.Energy and Environment Science and TechnologyIdaho National LaboratoryIdaho FallsUSA

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