| 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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Knowles, David M.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024A correlative approach to evaluating the links between local microstructural parameters and creep initiated cavitiescitations
- 2024Productive Automation of Calibration Processes for Crystal Plasticity Model Parameters via Reinforcement Learningcitations
- 2024Calibration and surrogate model-based sensitivity analysis of crystal plasticity finite element models
- 2024Towards a Data-Driven Evolutionary Model of the Cyclic Behaviour of Austenitic Steels
- 2024Effect of grain boundary misorientation and carbide precipitation on damage initiationcitations
- 2023Exploring 3D X-Ray Diffraction Method to Validate Approaches in Materials Modelling
- 2022A method to extract slip system dependent information for crystal plasticity modelscitations
- 2022The effects of internal stresses on the creep deformation investigated using in-situ synchrotron diffraction and crystal plasticity modellingcitations
- 2021Comparing Techniques for Quantification of Creep Cavities
- 2021The role of grain boundary ferrite evolution and thermal aging on creep cavitation of type 316H austenitic stainless steelcitations
- 2021Evaluation of fracture toughness and residual stress in AISI 316L electron beam weldscitations
- 2020Microstructure-informed, predictive crystal plasticity finite element model of fatigue-dwellscitations
- 2020A novel insight into the primary creep regeneration behaviour of a polycrystalline material at high-temperature using in-situ neutron diffractioncitations
- 2020A novel insight into the primary creep regeneration behaviour of a polycrystalline material at high-temperature using in-situ neutron diffractioncitations
- 2020The role of grain boundary orientation and secondary phases in creep cavity nucleation of a 316h boiler headercitations
- 2019Effect of Plasticity on Creep Deformation in Type 316h Stainless Steel
- 2019Development of Fatigue Testing System for in-situ Observation of Stainless Steel 316 by HS-AFM & SEMcitations
- 2018Influence of prior cyclic plasticity on creep deformation using crystal plasticity modellingcitations
- 2018Comparison of predicted cyclic creep damage from a multi-material weldment FEA model and the traditional r5 volume 2/3 weldment approach
Places of action
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article
Effect of grain boundary misorientation and carbide precipitation on damage initiation
Abstract
A coupled crystal plasticity phase field damage framework has been developed and applied to modelling damage initiation. A novel implementation of a grain misorientation angle dependent critical energy release rate has been used to determine a reduction in the local critical energy release rate resulting from the effects of intergranular carbide precipitates and grain boundary misorientation. When applied to a notched high temperature 316H austenitic stainless steel specimen, a good correlation between experimental results and void nucleation statistics for a misorientation dependent critical energy release rate was obtained. This has been evaluated through comparison with correlative electron microscopy experimental results, showing the potential of phase field models in the area of early damage formation. Additions to include plastic strain and creep deformation effects were made, and comparisons were drawn with experimental data to investigate the contributions of microstructural geometry properties such as the difference in and average values of Schmid factors across grain boundaries, as well as the loading direction stress and dislocation densities. The limitations to this approach and opportunities for further work in this area are discussed, with specific interest in the need for additional literature data characterising grain boundary carbide precipitation and cavity nucleation analysis.