| 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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Larrosa, Nicolas O.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Corrosion mechanisms of plasma welded Nickel aluminium bronze immersed in seawatercitations
- 2024Modelling the Effect of Residual Stresses on Damage Accumulation Using a Coupled Crystal Plasticity Phase Field Fracture Approach
- 2024Cohesive zone modelling of hydrogen environmentally assisted cracking for double cantilever beam samples of 7xxx aluminium alloys
- 2023The role of corrosion pit topography on stress concentration
- 2023Investigation of the effect of pitting corrosion on the fatigue strength degradation of structural steel using a short crack modelcitations
- 2023Investigation of the effect of pitting corrosion on the fatigue strength degradation of structural steel using a short crack modelcitations
- 2022Development of a microstructural cohesive zone model for intergranular hydrogen environmentally assisted crackingcitations
- 2022Development of a microstructural cohesive zone model for intergranular hydrogen environmentally assisted crackingcitations
- 2022Sizing limitations of ultrasonic array images for non-sharp defects and their impact on structural integrity assessmentscitations
- 2022The Role of Surface Roughness on Pitting Corrosion Initiation in Nickel Aluminium Bronzes in Aircitations
- 2020Pit to crack transition and corrosion fatigue lifetime reduction estimations by means of a short crack microstructural modelcitations
- 2020Pit to crack transition and corrosion fatigue lifetime reduction estimations by means of a short crack microstructural modelcitations
- 2020Hydrogen environmentally assisted cracking during static loading of AA7075 and AA7449citations
- 2020Hydrogen environmentally assisted cracking during static loading of AA7075 and AA7449citations
- 2018Linking microstructure and processing defects to mechanical properties of selectively laser melted AlSi10Mg alloycitations
- 2018Corrosion-fatiguecitations
- 2017A transferability approach for reducing excessive conservatism in fracture assessmentscitations
- 2016Ductile fracture modelling and J-Q fracture mechanicscitations
- 2016Blunt defect assessment in the framework of the failure assessment diagramcitations
- 2015Characterization of the effect of notch bluntness on hydrogen embrittlement and fracture behavior using fe analyses
- 2015Fatigue life estimation of pitted specimens by means of an integrated fracture mechanics approachcitations
Places of action
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article
Blunt defect assessment in the framework of the failure assessment diagram
Abstract
In order to reduce over-conservatism in fitness-for-service assessment procedures, experimental evidence and recent analytical developments recognise the importance of considering the actual shape of non-sharp flaws and/or the real geometric constraint conditions at the crack tip. This paper addresses the effect of blunt defects on the structural integrity assessment of reactor pressure vessel (RPV) and pipeline steels. Parametric studies for compact tension specimens with various notch root radii are performed using finite element analysis. The notch fracture toughness, the resistance to the onset of ductile cracking and the J-integral, quantifying the notch driving force, are evaluated. A stress-modified fracture strain model is used as a virtual testing method. The results are analyzed in the framework of the failure assessment diagram (FAD), showing that the existing shape of the FAD is also suitable for assessments of blunt defects and how the concepts introduced can be used to reduce the conservatism in defect assessment, define margins on failure and indicate when plastic collapse is the dominant failure mechanism.