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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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Mummery, Pm
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Delayed surface degradation in W-Ta alloys at 400°C under high-fluence 40 eV He plasma exposurecitations
- 2021High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentationcitations
- 2019Analysis of dynamic fracture and fragmentation of graphite bricks by combined XFEM and cohesive zone approachcitations
- 2019Configurational Entropy in Multicomponent Alloys: Matrix Formulation from Ab Initio Based Hamiltonian and Application to the FCC Cr-Fe-Mn-Ni Systemcitations
- 20173D dynamic fracture and fragmentation of AGR Graphite brick slices using XCZM
- 2017Short-Range Order in High Entropy Alloyscitations
- 2017Dynamic fracture analysis by explicit solid dynamics and implicit crack propagationcitations
- 2017Crack healing behaviour of Cr2AlC MAX phase studied by X-ray tomographycitations
- 2017The effects of ion irradiation on the micromechanical fracture strength and hardness of a self-passivating tungsten alloycitations
- 2017Micro X-ray Computed Tomography Image-based Two-scale Homogenisation of Ultra High Performance Fibre Reinforced Concretecitations
- 2016Fracture strength testing of a self-passivating tungsten alloy at the micrometre scalecitations
- 2016Investigating the effects of stress on the pore structures of nuclear grade graphitescitations
- 2016In situ observation of mechanical damage within a SiC-SiC ceramic matrix compositecitations
- 2013Observation and quantification of three-dimensional crack propagation in poly-granular graphitecitations
- 2012Gel-cast glass-ceramic tissue scaffolds of controlled architecture produced via stereolithography of mouldscitations
- 2009A finite element approach to the biomechanics of dromaeosaurid dinosaur claws
- 2008Investigating predictive capabilities of image-based modeling for woven composites in a scalable computing environment
- 2008Analysis of crack propagation in nuclear graphite using three-point bending of sandwiched specimenscitations
- 2008Nanoindentation of histological specimens using an extension of the Oliver and Pharr methodcitations
- 2005Full-field strain mapping by optical correlation of micrographs acquired during deformationcitations
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article
Analysis of crack propagation in nuclear graphite using three-point bending of sandwiched specimens
Abstract
The aim of this paper was to assess the suitability of the sandwiched beam in three-point bending as a technique for determining fracture toughness and R-curve behaviour of nuclear graphite using small beam specimens. Surface displacements of the cracked beam specimen were measured using Electronic Speckle Pattern Interferometry (ESPI) and Image Correlation in order to accurately monitor crack propagation and frictional contact between the test specimen and the sandwiching beams. The results confirmed that solutions based on the simple beam theory could overestimate the fracture toughness of graphite. Finite element analysis using a Continuum Damage Mechanics failure model indicated that both friction and shape of the notch played an important part in providing resistance to crack growth. Inclusion of these factors and the use of more accurate load vs. crack length curves derived from the FE model would provide a satisfactory measure of fracture toughness in small beam specimens under such a loading configuration. The particular graphite tested, IG-110, showed a decrease in fracture toughness with increasing crack length. © 2007 Elsevier B.V. All rights reserved.