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Lecture

De l'impression 3d en céramique

Lecture

Mesurer la déformation du sel, pour l'aménagement de réservoirs en cavités salines

Lecture

Electromagnetic forming process for metallic pieces

Lecture

Amélioration de la performance des éoliennes

Lecture

Vers un stockage géologique du C02 avec impuretés

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Research Topics

 

  • MECHANICS OF GENERALIZED CONTINUA : Cosserat, Second Grade, Micromorphic
  • CRYSTAL PLASTICITY : Single Crystal, Polycrystal
  • HOMOGENIZATION : Computational Homogenization Methods, Size of Representative Volume Element
  • STRAIN LOCALIZATION PHENOMENA : Kink Bands, Slip Band Propagation, Deformation Twinning, Crack Tip, Regularization
  • METALLIC FOAMS : Aluminium, Nickel
  • MICROSTRUCTURAL MECHANICS : 2D Microstructures, 3D Microstructures

 


Cosserat continuum

Kinematics, statics

Homogenization of Cosserat media

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Second Grade Medium

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Crystal Plasticity

Constitutive equations : Mandel, Cosserat

Single crystal Ni-based superalloys : microstructure, periodic homogenization 1, periodic homogenization 2,

Polycrystal : torsion of copper wires

Grain size effect : internal length, lattice curvature near grain boundaries, Hall-Petch

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Deformation Twinning

Twinning and untwinning of a single crystal

Twinning at a crack tip

Twin network in a coating

Hysteresis and constitutive equations

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Microstructural mechanics

Objectives, methods

2D microstructures : coatings, multicrystals

3D microstructures : foams, tomography confocal microscopy polycrystals random models

3D finite element computations : parallel computing 1, parallel computing 2, parallel machine, two-phase materials

Polycrystals : RVE, intergranular damage, intergranular diffusion

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