| 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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Thomas, Rhys
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2024Quantifying cracking and strain localisation in a cold spray chromium coating on a zirconium alloy substrate under tensile loading at room temperaturecitations
- 2024Quantifying cracking and strain localisation in a cold spray chromium coating on a zirconium alloy substrate under tensile loading at room temperaturecitations
- 2024Identification, classification and characterisation of hydrides in Zr alloyscitations
- 2024Identification, classification and characterisation of hydrides in Zr alloys
- 2024Fractional densities and character of dislocations in different slip modes from powder diffraction patternscitations
- 2024Fractional densities and character of dislocations in different slip modes from powder diffraction patternscitations
- 2024Development of novel carbon-free cobalt-free iron-based hardfacing alloys with a hard π-ferrosilicide phase
- 2024Development of novel carbon-free cobalt-free iron-based hardfacing alloys with a hard π-ferrosilicide phase
- 2023Characterization of Irradiation Damage Using X-Ray Diffraction Line-Profile Analysiscitations
- 2023Characterization of Irradiation Damage Using X-Ray Diffraction Line-Profile Analysiscitations
- 2023Exploring the hydride-slip interaction in zirconium alloyscitations
- 2023Characterization of Hydride Precipitation and Reorientation in Zircaloy-4 at Different Metallurgical States
- 2023The role of hydrides and precipitates on the strain localisation behaviour in a zirconium alloycitations
- 2023Dislocation density transients and saturation in irradiated zirconiumcitations
- 2023Dislocation density transients and saturation in irradiated zirconiumcitations
- 2022Investigating Irradiation Creep of Zircaloy-4 Using In-Situ Proton Irradiation and Transmission Electron Microscopy
- 2022Multi-dimensional study of the effect of early slip activity on fatigue crack initiation in a near-α titanium alloycitations
- 2022A novel method for radial hydride analysis in zirconium alloys:HAPPycitations
- 2022A novel method for radial hydride analysis in zirconium alloyscitations
- 2022Optimising large-area crystal orientation mapping of nanoscale β phase in α + β titanium alloys using EBSDcitations
- 2022Simulation of crystal plasticity in irradiated metals: a case study on Zircaloy-4citations
- 2022CHARACTERISATION OF HYDRIDE PRECIPITATION AND REORIENTATION IN ZIRCALOY-4 AT DIFFERENT METALLURGICAL STATES
- 2022Slip activity during low-stress cold creep deformation in a near-α titanium alloycitations
- 2022Slip activity during low-stress cold creep deformation in a near-α titanium alloycitations
- 2021The Effect of Loading Direction on Slip and Twinning in an Irradiated Zirconium Alloycitations
- 2021Understanding the role of local texture variation on slip activity in a two-phase titanium alloycitations
- 2021Understanding the role of local texture variation on slip activity in a two-phase titanium alloycitations
- 2020Comparison of sub-grain scale digital image correlation calculated using commercial and open-source software packagescitations
- 2020Understanding strain localisation behaviour in a near-α Ti-alloy during initial loading below the yield stress
- 2020Early slip activity and fatigue crack initiation of a near alpha titanium alloycitations
- 2019Characterisation of irradiation enhanced strain localisation in a zirconium alloycitations
- 2019Characterisation of irradiation enhanced strain localisation in a zirconium alloycitations
- 2019Identification of active slip mode in a hexagonal material by correlative scanning electron microscopycitations
- 2019Identification of active slip mode in a hexagonal material by correlative scanning electron microscopycitations
- 2019Data for: Characterisation of irradiation enhanced strain localisation in a zirconium alloy
- 2018Enabling high resolution strain mapping in zirconium alloyscitations
- 2018Enabling high resolution strain mapping in zirconium alloyscitations
Places of action
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article
Simulation of crystal plasticity in irradiated metals: a case study on Zircaloy-4
Abstract
A classical crystal plasticity formulation based on dislocation slip was extended to include the mechanisms of dislocation channelling, with associated strain softening which is observed in many alloys post irradiation. The performance of the model was evaluated against experimental data on Zircaloy-4, which included engineering stress-strain response and high-resolution digital image correlation strain mapping. Variants of the model were developed to evaluate the influence on the strain hardening law used, comparing hardening based on a linear relationship for effective plastic strain with that based on the evolution of geometrically necessary dislocations. In addition, governing equations for simulating the interaction between gliding dislocations with various types of irradiation defect were investigated; this included the comparison of isotropic and anisotropic interactions based on the resultant reaction segments for each interaction. It was shown that the engineering stress-strain response measured by experiment could be captured by many of the model variants, but the simulation of characteristic strain heterogeneity was more sensitive to the model used. Direct modelling of the HRDIC experiments indicated that the model successfully predicted the activation of slip systems in many cases and exhibited localised strain distribution as observed in the experiment. In all models localised kink band formation was predicted, which is not observed experimentally, which highlights limitations in modelling of softening materials with a local crystal plasticity approach and a required area of development going forward.