Publications by Gérard Gremaud

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We investigate a vibrated granular system composed of millimeter-size glass beads. When the system is submitted to a perturbation with decreasing intensity, below the fluidization limit, it evolves in a way similar to glass-forming liquids until it reaches ...

We investigate the jamming transition observed in vibrated granular systems composed of millimeter size glass beads. When a granular system is submitted to vibrations with decreasing intensity, it evolves in a way similar to glass-forming liquids: from a low viscosity, liquid-like state, it evolves into an amorphous jammed state. This evolution is observed by the means of an immersed oscillator acting as a torsion pendulum in forced mode. The complex susceptibility of the oscillator is measured as a functio

We propose a new approach to the study of diffusion dynamics in vibrated granular systems. The dynamic of a granular material is mainly defined by dry friction interactions. This type of interaction is difficult to model for a large quantity of particles. ...

Correlations between adhesion hysteresis and local friction are theoretically and experimentally investigated. The model is based on the classical theory of adhesional friction, contact mechanics, capillary hysteresis, and nanoscale roughness. Adhesion hys ...

The creep of a dislocation on its glide plane is essentially controlled by three different stress fields: the external applied stress, the internal stress field due to a multi-scale hierarchy of different obstacles (the structural defects acting on the dis ...

We present a high precision particle-by-particle 3D reconstruction of granular systems composed of monodispersed spheres (sphere packings); the experimental approach is based on magnetic resonance imaging techniques. Our measurements revealed a strong corr ...

Cet ouvrage propose une théorie unifiée, originale et novatrice de la déformation des milieux fluides et solides. Les équations fondamentales d’évolution des milieux déformables y sont développées de façon méthodique et rigoureuse, sous forme vectorielle et en coordonnées d’Euler. Elles sont appliquées à la description phénoménologique des fluides viscoélastiques, des fluides chimiques, des solides élastiques, des solides auto-diffusifs, des solutions solides et des solides anélastiques et plastiques. L’int

We study the jamming process arising in granular systems subjected to decreasing external vibration, which has features similar to the cooling of glass-forming liquids. We modify the friction between grains and observe that jamming occurs 'more easily' for ...

Gérard Gremaud

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Glass transition associated with the jamming of vibrated granular matter

Fluidized States of Vibrated Granular Media Studied by Mechanical Spectroscopy

Fractional Brownian motion and anomalous diffusion in vibrated granular materials

Correlations between adhesion hysteresis and friction at molecular scales

Theory of plasticity and anelasticity due to dislocation creep through a multi-scale hierarchy of obstacles

A link between short-range and long-range properties of random sphere packings

Théorie eulérienne des milieux déformables - Charges de dislocation et désinclinaison dans les solides

Friction and Hertzian contact in granular glass

A new MRI reconstruction technique based on real space Hough transform for granular samples

Adhesion hysteresis and friction at nanometer and micrometer lengths

Quantitative measure of nanoscale adhesion hysteresis by ultrasonic force microscopy

Probing local water contents of in vitro protein films by ultrasonic force microscopy

Ultrasonic Measurements of the Surface-Properties of Laser Treated Steel

Local mechanical spectroscopy with nanometer-scale lateral resolution

Scanning Acoustic Microscopy of the Cellular Structure of the Interphase in a Metal-Adhesive Bond

Tribology and ultrasonic hysteresis at local scales

V(Z) of Continuous-Wave Reflection Scanning Acoustic Microscope

Versatile force-feedback manipulator for nanotechnology applications

Scanning Local Acceleration Microscopy: SLAM

Thin-Film Characterization Using Generalized Lamb Waves and Harmonic-Generation