| 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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Ren, Sicong
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024On the grain level deformation of BCC metals with crystal plasticity modeling:Application to an RPV steel and the effect of irradiationcitations
- 2024Analysis of rolling contact and tooth root bending fatigue in a new high-strength steel:Experiments and micromechanical modellingcitations
- 2024On the grain level deformation of BCC metals with crystal plasticity modelingcitations
- 2024Analysis of rolling contact and tooth root bending fatigue in a new high-strength steel: Experiments and micromechanical modellingcitations
- 2023Performance Driven Design And Modeling Of Compositionally Complex AM Al-Co-Ni-Fe Alloys
- 2023Performance Driven Design And Modeling Of Compositionally Complex AM Al-Co-Ni-Fe Alloys
- 2020Microstructure-informed modelling of the fracture toughness of alloys representing macro-segregated zones in heavy forgingscitations
- 2019Portevin-Le Chatelier effect triggered by complex loading paths in an Al–Cu aluminium alloycitations
- 2018Portevin-Le Chatelier effect triggered by complex loading paths in an Al–Cu aluminium alloycitations
- 2017A constitutive model accounting for strain ageing effects on work-hardening. Application to a C–Mn steelcitations
- 2017Interaction of the Portevin–Le Chatelier phenomenon with ductile fracture of a thin aluminum CT specimen: experiments and simulationscitations
- 2016Numerical investigation of dynamic strain ageing and slant ductile fracture in a notched specimen and comparison with synchrotron tomography 3D-DVCcitations
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article
On the grain level deformation of BCC metals with crystal plasticity modeling
Abstract
Capturing realistic deformation behavior in BCC metals at the polycrystal scale is an important aspect of predicting the material’s strength and failure. Furthermore, local deformation/strength heterogeneity also influences the lifetime and its assessments in reactor pressure vessel (RPV) steels, especially with accumulating irradiation doses during long-term operational conditions. This work utilizes a micromorphic crystal plasticity (CP) model for BCC materials with the capability to address temperature-dependent stress–strain response and irradiation effects relevant to RPV materials. The microstructure of the investigated material was characterized prior to and during testing using electron microscopy experiments, which are used for finite element model generation and simulation result validation. To analyze the validity of the model to predict strain localization under monotonic tensile loading, micro digital image correlation (DIC) was employed jointly with the CP simulations. Different modeling choices, such as the use Schmid/non-Schmid laws and gradient based CP modeling, greatly affected the capability of the model to represent similar magnitudes in strain localization and grain reorientation. The requirement for experimental measurements, including image based analyses, on a microstructural level as a validation tool for CP modeling is clearly demonstrated.