Forschergruppe
Nonlinear response to probe vitrification

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PhD Position in the lab Science et Ingénierie des Matériaux Grenoble

Metallic glasses are new materials in-between solids and liquids. But their deformation is still very poorly known. In particular, we observe that they fracture prematurely because of a localization of the plastic deformation in thin regions, but the origin of this phenomenon is still unknown. The goal of the PhD is to develop a multiscale simulation in order to simulate the deformation of glasses in experimental conditions at the micron scale, while incorporating information coming from the atomic scale. The first objective will be to develop a kinetic Monte Carlo simulation at the atomic scale using a new method to determine saddle-points, the Activation-Relaxation Technique. This simulation will serve to calibrate constitutive laws that will be used in Monte Carlo simulations at the micron scale aimed at determining the origin of the localization of plastic deformation in glasses.

PhD in the lab Science et Ingénierie des Matériaux (SIMAP) (http://simap.grenoble-inp.fr/) of INP Grenoble, in collaboration with the Laboratoire de Physique de la Matière Condensée et Nanostructure (LPMCN) of the Université Claude Bernard of Lyon (http://www-lpmcn.univ-lyon1.fr/site/) and the Department of Materials Science and Engineering of the Massachussetts Institute of Technology (http://dmse.mit.edu/). The supervisors are David Rodney (http://drodneygroup.webs.com/index.html) and Jean-Louis Barrat (http://www-lpmcn.univ-lyon1.fr/~barrat/). The PhD is financed by a grant from the Rhône-Alpes region through the cluster MACODEV (www.macodev.fr).

This PhD is theoretical and based on a numerical approach. Background knowledge in Condensed Matter Physics, Material Science and/or Computational Physics will be appreciated.

To apply, send a motivation letter with a recommendation letter to David Rodney (david.rodney@grenoble-inp.fr) or Jean-Louis Barrat (jean-louis.barrat@univ-lyon1.fr).

(Original Announcement in French and English available as a PDF file.)