We consider a variational model which describes a complex system composed, in its reference configuration, of a periodic distribution of ‘small’ interacting particles immersed in a continuous medium. We describe its macroscopic limit via Gamma-convergence, highlighting different regimes. In particular, we show how the interplay between the particles and the continuum leads, for a critical size of the particles, to a capacitary term. Eventually, we discuss how the presence of a continuum affects the properties of the ground states of the system of particles in terms of the validity or not of the so called ‘Cauchy-Born’ rule.

A variational model of interaction between continuum and discrete systems

ALICANDRO, Roberto;
2014-01-01

Abstract

We consider a variational model which describes a complex system composed, in its reference configuration, of a periodic distribution of ‘small’ interacting particles immersed in a continuous medium. We describe its macroscopic limit via Gamma-convergence, highlighting different regimes. In particular, we show how the interplay between the particles and the continuum leads, for a critical size of the particles, to a capacitary term. Eventually, we discuss how the presence of a continuum affects the properties of the ground states of the system of particles in terms of the validity or not of the so called ‘Cauchy-Born’ rule.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11580/23741
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