| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Baietto, Marie-Christine
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2022Modeling diffusive phase transformation and fracture in viscoplastic materialscitations
- 2022An experimental approach for the analytical study of secondary hydriding of fuel rods during a LOCA
- 2021On the fretting fatigue crack nucleation of complete, almost complete and incomplete contacts using an asymptotic methodcitations
- 2020An efficient finite element based multigrid method for simulations of the mechanical behavior of heterogeneous materials using CT imagescitations
- 2018Validation of a multimodal set-up for the study of zirconium alloys claddings' behaviour under simulated LOCA conditionscitations
- 2018A phase field method for modeling anodic dissolution induced stress corrosion crack propagationcitations
- 2018Modeling of inter- and transgranular stress corrosion crack propagation in polycrystalline material by using phase field methodcitations
- 2018Multimodal setups for the study of fresh Zircaloy-4 claddings under simulated thermal-mechanical RIA conditions
- 2017Oxygen segregation in pre-hydrided Zircaloy-4 cladding during a simulated LOCA transientcitations
- 2017Non-contact measurement of thermal field at high temperature using a single silicon based sensor camera
- 2017Multi-phase-field modeling of anisotropic crack propagation for polycrystalline materialscitations
- 2017Modeling inter/ trans granular failure using an anisotropic phase field approach
- 2017A Phase field method for modeling stress corrosion crack propagation in a nickel base alloycitations
- 2016Coupled Experimental / Numerical Approach to Determine the Creep Behavior of Zr-4 Cladding Under LOCA Condition
- 2016A phase field method for modelling stress corrosion cracks propagation in a nickel base alloy
- 2016Full-frame simulation of micro-structural failure using a multi-grid finite difference method
- 2016Secondary creep behavior of Zr-4 claddings under LOCA conditions
- 2016MLLS fitting on plasmon pic for mapping hydrides in a Zr alloy with a complex αZr+βZr acicular microstructure obtained by water quenchingcitations
- 2015Thermo mechanical behavior of fresh zircaloy-4 under LOCA conditions
- 2015Thermo mechanical behaviour of fresh zircaloy-4 under LOCA conditions
- 2014Adsorption and diffusion of hydrogen in Zircaloy-4
- 2014Hydrogen motion in Zircaloy-4 cladding during a LOCA transientcitations
- 20142D fatigue crack propagation in rails taking into account actual plastic stressescitations
- 2013X-FEM crack propagation under rolling contact fatigue accounting for actual residual stresses in the rail
- 2013XFEM crack propagation under rolling contact fatiguecitations
- 2011Direct estimation of generalized stress intensity factors using a multigrid XFEMcitations
- 2011Identification de comportements à la rupture, de mécanismes d'endommagement et de dissipations d'énergie à partir de méthodes de corrélation d'images
- 2010When X-FEM ideas join the gap between experiments measures and numerical simulations: 3D fatigue crack propagation
- 2010Three dimensional experimental and numerical multiscale analysis of a fatigue crackcitations
- 2010Damage law identification of a quasi brittle ceramic from a bending test using digital image correlationcitations
- 2010A multi-model X-FEM strategy dedicated to frictional crack growth under cyclic fretting fatigue loadings.citations
- 2008Modelling of corrosion induced stresses during zircaloy-4 oxidation in aircitations
- 2008X-ray microtomography, X-3D-Digital Image Correlation and X-FEM multigrid, a general tool for 3D crack growth law identification
- 2007A new fatigue frictional contact crack propagation model with the coupled X-FEM/LATIN methodcitations
- 2005Fracture of glassy polymers within sliding contactscitations
- 2003In situ analysis and modeling of crack initiation and propagation within model fretting contacts using polymer materialscitations
- 2003Local Fretting Regime Influences on Crack Initiation and Early Growthcitations
- 2002A predictive rolling contact fatigue crack growth model: Onset of branching, direction, and growth. Role of dry and lubricated conditions on crack patternscitations
- 2002Cracking under fretting fatigue: damage prediction under multiaxial fatigue
- 2000Stage II crack propagation direction determination under fretting fatigue loading: A new approach in accordance with experimental observations
Places of action
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article
Oxygen segregation in pre-hydrided Zircaloy-4 cladding during a simulated LOCA transient
Abstract
Oxygen and hydrogen distributions are key elements influencing the residual ductility of zirconium-based nuclear fuel cladding during the quench phase following a Loss Of Coolant Accident (LOCA). During the high temperature oxidation, a complex partitioning of the alloying elements is observed. A finite-difference code for solving the oxygen diffusion equations has been developed by Institut de Radioprotection et de Surete Nucleaire to predict the oxygen profile within the samples. The comparison between the calculations and the experimental results in the mixed alpha+beta region shows that the oxygen diffusion is not accurately predicted by the existing modeling. This work aims at determining the key parameters controlling the average oxygen profile within the sample in the two-phase regions at 1200 degrees C. High temperature steam oxidation tests interrupted by water quench were performed using pre-hydrided Zircaloy-4 samples. Experimental oxygen distribution was measured by Electron Probe Micro-Analysis (EPMA). The phase distributions within the cladding thickness, was measured using image analysis to determine the radial profile of alpha(O) phase fraction. It is further demonstrated and experimentally checked that the alpha-phase fraction in these regions follows a diffusion-like radial profile. A new phase fraction modeling is then proposed in the cladding metallic part during steam oxidation. The modeling results are compared to a large set of experiments including the influence of exposure duration and hydrogen content. Another key outcome from this modeling is that oxygen average profile is straightforward derived from the proposed modeling.