Damien Vandembroucq

PMMH/ESPCI

10, rue Vauquelin

75231 Paris Cedex 05

France

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Bâtiment O

+33 1 40 79 52 28

+33 1 40 79 45 23

damienvdb[AT]pmmh.espci.fr

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Fracture and plasticity of disordered matter

Amorphous plasticity: mesoscopic modelling

(with Botond Tyukodi, David Bouttes, Stéphane Roux)

Plastic deformation of amorphous materials results of series of localized rearrangement of the disordered structure. A simple depinning-like model developed at mesoscopic scale enables to reproduce salient features of the phenomenology : avalanches, correlation of plastic strain, localization and shear-banding...


Selected publication

M. Talamali, V. Petäja, D. Vandembrouq and S. Roux,
Strain localization and anisotropic correlations in a mesoscopic model of amorphous plasticity
Comptes-Rendus Mécanique 340, 275-288 (2012).

 

Interfacial fracture in heterogeneous materials as a depinning transition

(with Sylvain Patinet, Stéphane Roux )

The propagation of a crack front is modeled as the motion of an elastic line in a random media. The associated dynamic phase transition between a static phase (crack arrest) and a mobile phase (crack advance) enables to capture size effectsbut also to predict the effect of details of the microscopic disorder on the effective toughness at macroscopic scale.

  

Selected publication

S. Patinet, D. Vandembroucq and S. Roux,
Quantitative prediction of effective toughness at heterogeneous interface
Phys. Rev. Lett. 110, 165507 (2013)

 

Adhesion of thin films: interfacial toughness measurements

(with Sylvain Patinet, Véronique Lazarus, Etienne Barthel, Davy Dalmas, Jean-Baptiste Leblond)

The analytical and numerical study of the deflection of crack front by a tough obstacke enables to quantify the interfacial toughness landscape from the sole geometry of the crack front.

  

Selected publication

S. Patinet, L. Alzate, E. Barthel, D. Dalmas, D. Vandembroucq and V. Lazarus,
Crack pinning in a heterogeneous planar interface: Experimental, finite elements and perturbation approaches
Journal of The Mechanics and Physics of Solids 61, 311-324 (2013).

X-ray tomography of phase separated glasses

Domain growth: hydrodynamic coarsening

(with David Bouttes, Davy Dalmas, Emmanuelle Gouillart)


In-situ X-ray tomography experiments are performed on ESRF line ID19 to follow the coarsening of phase separated domains of Barium borosilicate glass at high temperature.  

  

Selected publication

D. Bouttes, E. Gouillart, E. Boller, D. Dalmas and D. Vandembroucq
Dynamical scaling and fragmentation in viscous coarsening: An interrupted in-situ X-ray tomographic study
arxiv:1309.1724, under review in Phys. Rev. Lett.

Crack propagation in model heterogeneous glasses

(with David Bouttes, Davy Dalmas, Emmanuelle Gouillart, Frédéric Lechenault, Eric Maire)


Phase separated glasses are used as model heterogeneous glasses of tunable microstructure to image the propagation of stable cracks.

Frozen capillary waves on glass surfaces

AFM and optical profilometry on glass surfaces

(with Coralie Brun, Bruno Bresson, Matteo Ciccotti, Gilles Tessier)


The surface roughness of fire-polished glass surfaces originates from the freezing of capillary waves at glass transition. This sub-nanometric roughness is believed to be responsible of the ultimate scattering loss of photonic band-gap optical fibres. In collaboration with ORC (University of Southampton) we study the surface roughness of such optical fibres in the framework of the european project ModeGap.

 

Selected publication

T. Sarlat and A. Lelarge and E. Sondergard and D. Vandembroucq,
Frozen capillary waves on glass surfaces: an AFM study,
Euro. Phys. J. B 54, 121 (2006).