| 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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Czarnota, Christophe
Laboratory of Microstructure Studies and Mechanics of Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Spark plasma sintering and mechanical properties of two grades of <scp>PEKK</scp> presenting different Tere/Iso ratios
- 2024Experimental and Numerical Analysis of Aluminum-Polyethylene Composite Structure Subjected to Tension and Perforation Under Dynamic Loading for a Wide Range of Temperaturescitations
- 2023Lateral ring compression test applied to a small caliber steel jacket: Identification of a constitutive modelcitations
- 2021Extension of 1D linear stability analysis based on the Bridgman assumption. Applications to the dynamic stretching of a plate and expansion of a ringcitations
- 2020Steady shock waves in porous metals: Viscosity and micro-inertia effectscitations
- 2020Dynamic response of ductile materials containing cylindrical voidscitations
- 2020Extension of linear stability analysis for the dynamic stretching of plates: Spatio-temporal evolution of the perturbationcitations
- 2018Shock structure in porous metals: The interplay of material strain rate dependency with micro-inertia effects
- 2015A predictive hybrid force modeling in turning: application to stainless steel dry machining with a coated groove toolcitations
- 2014Modeling of the abrasive tool wear in metal cutting: Influence of the sliding-sticking contact zones
- 2014A new abrasive wear law for the sticking and sliding contacts when machining metallic alloyscitations
- 2013Analytical stochastic modeling and experimental investigation on abrasive wear when turning difficult to cut materialscitations
- 2013Statistical approach for modeling abrasive tool wear and experimental validation when turning the difficult to cut Titanium Alloys Ti6Al4Vcitations
- 2013Experimental Parameters Identification of Fatigue Damage Model for Short Glass Fiber Reinforced Thermoplastics GFRPcitations
- 2013Modeling of the abrasive tool wear in metal cutting: Influence of the sliding-sticking contact zones
- 2013Modeling of velocity-dependent chip flow angle and experimental analysis when machining 304L austenitic stainless steel with groove coated-carbide toolscitations
- 2008Modelling of dynamic ductile fracture and application to the simulation of plate impact tests on tantalumcitations
- 2006Ductile damage of metallic materials under dynamic loading – Application to spalling
Places of action
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thesis
Ductile damage of metallic materials under dynamic loading – Application to spalling
Abstract
From many years, a very special attention is paid to dynamic fracture in the industrial (forming process, high-speed machining,...), as well as in the medical (laser shock surgery,...) or military (perforation, impact,...) sectors. Ductile fracture has been observed to result from the nucleation, growth and coalescence of voids. The aim of the present work is to develop a ductile damage model for metallic materials subjected to dynamic loading. The material domain is assumed initially free of voids and the nucleation stage is accounted for by a statistical description of potential nucleation sites. When the pressure overcomes a critical value at a given site, a void is appearing spontaneously and starts to grow by plastic deformation of the matrix material. After a preliminary study on different homogeneous schemes describing the macroscopic behaviour deduced from the local behaviour of all unit cells, a “same applied stress” type approach is adopted. It is shown that micro inertia effects are closely related to the damage heterogeneity within the material. It also appears of the utmost importance to take into account the effect of the porosity on the inertial contribution and on the loss of viscoplastic matrix resistive strength. Afterwards, the modelling is implemented in the finite element code ABAQUS/EXPLICIT. Numerical simulations of plate impact experiments are conducted and reveal a good accuracy with experimental data on tantalum material. The proposed work provides a better comprehensive of spalling phenomenon.