| 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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Duplan, Yannick
Université Grenoble Alpes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Investigation of the multiple-fragmentation process and post-fragmentation behaviour of dense and nacre-like alumina ceramics by means of tandem impact experiments and tomographic analysis ; Examination du processus de fragmentation multiple et du comportement post-fragmentation de céramiques d'alumine dense et nacrée au moyen d'expériences d'impact tandem et d'analyse tomographiquecitations
- 2021Ultra-high speed X-ray imaging of dynamic fracturing in cementitious materials under impact ; Imagerie aux rayons X ultra-rapide de la fracturation dynamique dans des matériaux cimentaires sous impactcitations
- 2020Comparison of Two Processing Techniques to Characterise the Dynamic Crack Velocity in Armour Ceramic Based on Digital Image Correlation
- 2020 Caractérisation expérimentale et modélisation des propriétés de rupture et de fragmentation dynamiques d'un noyau de munition et de céramiques à blindage
- 2020Comparison of Two Processing Techniques to Characterise the Dynamic Crack Velocity in Armour Ceramic Based on Digital Image Correlation ; Comparaison de deux techniques de traitement pour caractériser la vitesse de fissuration dynamique dans la céramique de blindage basée sur la corrélation d'images numériques
- 2019Identification of Johnson-Cook Model Parameters of an AP Projectile Core Based on Two Shear-Compression Specimen Geometries and One Dog-Bone Sample ; Identification des Paramètres du Modèle de Johnson-Cook d'un Noyau de Projectile AB (Anti-Blindage) Basée sur Deux Échantillons Compression-Cisaillement et une Géométrie en Os de Chien
- 2019Numerical Investigation of Damage and Failure Modes Induced in a Bilayer Configuration Subjected to Ballistic Limit Velocity Test
- 2019 Identification of Johnson-Cook Model Parameters of an AP Projectile Core Based on Two Shear-Compression Specimen Geometries and One Dog-Bone Sample
- 2018Numerical analysis of a testing technique to investigate the dynamic crack propagation in armour ceramic ; Analyse numérique d'une technique d'essai pour évaluer la propagation dynamique d'une fissure dans les blindages céramiques
- 2018 Identification of Johnson-Cook Model Parameters of an AP Projectile Core Based on Two Shear-Compression Specimen Geometries and One Dog-Bone Sample
- 2017A testing technique to investigate the dynamic crack propagation in armour ceramic - Numerical analysis through « Rockspall »
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document
A testing technique to investigate the dynamic crack propagation in armour ceramic - Numerical analysis through « Rockspall »
Abstract
eramic materials are numerically studied to understand their fracturing behaviour upon dynamic conditions and impact loadings. During a ballistic impact of a projectile against a ceramic armour system, an intense fragmentation composed of numerous oriented cracks, develops in the target. It is the reason why the conditions of crack initiation, propagation and arrest in these materials need to be investigated. In the present work, a dynamic testing configuration has been developed in order to characterise the dynamic fracture toughness (K_I,d), considering a single crack that propagates from the specimen notch tip. The “Rockspall” testing technique, which employs a two-notch specimen loaded in a spalling experiment, was used. Thanks to the reflection of a compression wave into a tensile load from the sample free-end, a single dynamic crack is triggered. The sample geometry is optimised by means of a series of FE numerical simulations involving an anisotropic damage model.