L'approche energetique en mecanique des materiaux granulaires

TL;DR

This paper introduces a new energy-based approach to the mechanics of granular materials, emphasizing energy dissipation by friction and its implications for geomechanics and soil properties.

Contribution

It presents a novel physics framework based on an energy rate tensor, linking discontinuous granular mechanics to continuous media models in geomechanics.

Findings

Energy dissipation by friction is fundamental to granular mechanics.

Discontinuous granular mechanics can be modeled as continuous media.

The approach explains practical properties of soils in geomechanics.

Abstract

This communication establishes first, that basis of discontinuous granular materials mechanics, are the explicit result of a new approach of the physics of energy dissipation by friction, and second, that these mechanics of discontinua, transposed to the equivalent continuous media, as used in geomechanics, is directly responsible for a large set of practical properties of these materials, part of the fundamentals of Soil Mechanics. These physics of energy dissipation are developped on the original concept of energy rate tensor of internal actions.