| 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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Liu, Yang
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Lead‐free halide perovskite materials and optoelectronic devices: progress and prospectivecitations
- 2024Characterization of AlGaAs/GeSn heterojunction band alignment via X-ray photoelectron spectroscopy
- 2023Exploring the hydride-slip interaction in zirconium alloyscitations
- 2023Demonstration of a monocrystalline GaAs-$β$-Ga$_2$O$_3$ p-n heterojunction
- 2023Lead-Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospectivecitations
- 2023Open-source environmental data as an alternative to snail surveys to assess schistosomiasis risk in areas approaching elimination
- 2023Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospectivecitations
- 2022Photon Drag Currents and Terahertz Generation in α-Sn/Ge Quantum Wellscitations
- 2022Simulation of crystal plasticity in irradiated metals: a case study on Zircaloy-4citations
- 2021Characterisation of microstructural creep, strain rate and temperature sensitivity and computational crystal plasticity in Zircaloy-4citations
- 2019Quantifying the mechanical properties of polymeric tubing and scaffold using atomic force microscopy and nanoindentationcitations
- 2019Texture and phase variation of ALD PbTiO3 films crystallized by rapid thermal annealcitations
- 2019Screening Approach for the Discovery of New Hybrid Perovskites with Efficient Photoemissioncitations
- 2019Mechanical and chemical characterisation of bioresorbable polymeric stent over two-year in vitro degradationcitations
- 2018Cellular response to cyclic compression of tissue engineered intervertebral disk constructs composed of electrospun polycaprolactonecitations
- 2018Enhanced Water Barrier Properties of Surfactant-Free Polymer Films Obtained by MacroRAFT-Mediated Emulsion Polymerizationcitations
- 2017Prediction of linear and non-linear behavior of 3D woven composite using mesoscopic voxel models reconstructed from X-ray micro-tomographycitations
- 2017174 Comparison of the mechanical performance of polymeric and metallic scaffolds – testing and modelling
- 2017Numerical Modelling of Effects of Biphasic Layers of Corrosion Products to the Degradation of Magnesium Metal In Vitrocitations
- 2017Bandgap Control via Structural and Chemical Tuning of Transition Metal Perovskite Chalcogenidescitations
- 2017Compact Brillouin devices through hybrid integration on siliconcitations
- 2017A numerical approach to reconstruct mesoscopic yarn section of textile composites based upon X-ray micro-tomography
- 2016Effects of Annealing on GaAs/GaAsSbN/GaAs Core-Multi-shell Nanowires
- 2015Film thickness of vertical upward co-current adiabatic flow in pipescitations
- 2014Bifunctional organic/inorganic nanocomposites for energy harvesting, actuation and magnetic sensing applicationscitations
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.