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author = "Cortet, Pierre-Philippe"
1 2 3 > >>

Found 26 documents, displaying page 1 of 3

Croissance lente de fissures: de la fragilité à la complexité

Author(s) : Cortet, Pierre-Philippe
Description : Cette thèse de doctorat a pour objectif d'apporter une contribution à la compréhension des mécanismes physiques en jeu dans le phénomène de croissance lente de fissures dans un matériau sous contrainte. Ce travail s'appuie principalement sur des études expérimentales, mais est aussi composé de trava...
Repository : HAL - Hyper Article on Line
Language(s) : French

A dynamical law for slow crack growth in polycarbonate films

Author(s) : Cortet, Pierre-Philippe , Vanel, Loïc , Ciliberto, Sergio
Description : We study experimentally the slow growth of a single crack in polycarbonate films submitted to uniaxial and constant imposed stress. For this visco-plastic material, we uncover a dynamical law that describes the dependence of the instantaneous crack velocity with experimental parameters. The law invo...
Repository : HAL - Hyper Article on Line
Language(s) : English

Super-Arrhenius dynamics for sub-critical crack growth in two-dimensional disordered brittle media

Author(s) : Cortet, Pierre-Philippe , Vanel, Loïc , Ciliberto, Sergio
Description : Taking into account stress fluctuations due to thermal noise, we study thermally activated irreversible crack growth in disordered media. The influence of material disorder on sub-critical growth of a single crack in two-dimensional brittle elastic material is described through the introduction of a...
Repository : HAL - Hyper Article on Line
Language(s) : English

Slow crack growth in polycarbonate films

Author(s) : Cortet, Pierre-Philippe , Santucci, Stéphane , Vanel, Loïc , Ciliberto, Sergio
Description : We study experimentally the slow growth of a single crack in polycarbonate films submitted to uniaxial and constant imposed stress. The specificity of fracture in polycarbonate films is the appearance of flame shaped macroscopic process zones at the tips of the crack. Supported by an experimental st...
Repository : HAL - Hyper Article on Line
Language(s) : English

Imaging the stick-slip peeling of an adhesive tape under a constant load

Author(s) : Cortet, Pierre-Philippe , Ciccotti, Matteo , Vanel, Loïc
Description : Using a high speed camera, we study the peeling dynamics of an adhesive tape under a constant load with a special focus on the so-called stick-slip regime of the peeling. It is the first time that the very fast motion of the peeling point is imaged. The speed of the camera, up to $16000$ fps, allows...
Repository : HAL - Hyper Article on Line
Language(s) : English

Physics of sub-critical crack growth in a fibrous material: experiments and model

Author(s) : Santucci, Stéphane , Cortet, Pierre-Philippe , Vanel, Loïc , Ciliberto, Sergio
Description : We are interested in slow rupture processes observed when a material is submitted to a constant load below a critical rupture threshold. It is well known that the delay time (or lifetime) of the material before complete macroscopic rupture strongly depends on the applied stress. Thermodynamics has s...
Repository : HAL - Hyper Article on Line
Language(s) : English

Surface oscillations and slow crack growth controlled by creep dynamics of necking instability in a glassy film

Author(s) : Cortet, Pierre-Philippe , Vanel, Loïc , Ciliberto, Sergio
Description : We study experimentally the slow growth of a single crack in a glassy film of polycarbonate submitted to uniaxial and constant imposed load. Flame-shaped macroscopic zones of plastic deformation appear at the tips of the crack and the formation of these plastic zones involves a necking instability. ...
Repository : HAL - Hyper Article on Line
Language(s) : English

Attractive and repulsive cracks in a heterogeneous material

Author(s) : Cortet, Pierre-Philippe , Huillard, Guillaume , Vanel, Loïc , Ciliberto, Sergio
Description : We study experimentally the paths of an assembly of cracks growing in interaction in a heterogeneous two-dimensional elastic brittle material submitted to uniaxial stress. For a given initial crack assembly geometry, we observe two types of crack path. The first one corresponds to a repulsion follow...
Repository : HAL - Hyper Article on Line
Language(s) : English

Anisotropic energy transfers in decaying rotating turbulence

Author(s) : Moisy, Frederic , Lamriben, Cyril , Cortet, Pierre-Philippe
Description : see pdf file
Repository : HAL - Hyper Article on Line
Language(s) : English

Experimental evidence of a triadic resonance of plane inertial waves in a rotating fluid

Author(s) : Bordes, Guilhem , Moisy, Frederic , Dauxois, Thierry , Cortet, Pierre-Philippe
Description : Plane inertial waves are generated using a wavemaker, made of oscillating stacked plates, in a rotating water tank. Using particle image velocimetry, we observe that, after a transient, the primary plane wave is subject to a subharmonic instability and excites two secondary plane waves. The measured...
Repository : HAL - Hyper Article on Line
Language(s) : English
1 2 3 > >>

Found 26 documents, displaying page 1 of 3