Simulation of Slip-Oxidation Process by Mesh Adaptivity in a Cohesive Zone Framework

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ID: 272375
2021
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Abstract
Adaptive oxide thickness was developed in a cohesive element based multi-physics model including a slip-oxidation and diffusion model. The model simulates the intergranular stress corrosion cracking (IGSCC) in boiling water reactors (BWR). The oxide thickness was derived from the slip-oxidation and updated in every structural iteration to fully couple the fracture properties of the cohesive element. The cyclic physics of the slip oxidation model was replicated. In the model, the thickness of the oxide was taken into consideration as the physical length of the cohesive element. The cyclic process was modelled with oxide film growth, oxide rupture, and re-passivation. The model results agreed with experiments in the literature for changes in stress intensity factor, yield stress representing cold work, and environmental factors such as conductivity and corrosion potential.
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mosesson2021materialssimulation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Michal Sedlak Mosesson;Bo Alfredsson;Pål Efsing;Sedlak Mosesson, Michal;Alfredsson, Bo;Efsing, Pål;
Journal Materials (Basel, Switzerland)
Year 2021
DOI
10.3390/ma14133509
URL
https://www.mdpi.com/1996-1944/14/13/3509/htm
Keywords
diffusion fracture mechanics cohesive zone model oxide film slip oxidation

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