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CohPa

Financiado

Cerrado

Cohesion in Particulate media

How grains flow? Can we predict the behavior of sand, snow, powders and more generally of a collection of particles? In many situations both in nature or industry, this question is of importance to predict avalanches, landslides,... ver más

31/10/2028

CNRS

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2023-06-28

ERC-2022-ADG: ERC ADVANCED GRANTS Scope:Objectives

I+D

Cerrada

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Este proyecto no cuenta con búsquedas de partenariado abiertas en este momento.

Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

CNRS

2.47M€ | Lider

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Duración del proyecto: 64 meses Fecha Inicio: 2023-06-28
Fecha Fin: 2028-10-31

Líder del proyecto

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto How grains flow? Can we predict the behavior of sand, snow, powders and more generally of a collection of particles? In many situations both in nature or industry, this question is of importance to predict avalanches, landslides, or designing silos and industrial processes. While for simple fluids the measure of the viscosity is sufficient to compute and predict the flow, for granular materials the question remains open. The challenge of understanding the physics of granular flows has motivated many researches and constitutive laws have been developed for grains interacting by friction and collision. However, in many applications, grains present cohesion and predicting their behavior is much more challenging. Sticky or humid grains, powders, snow, fibers are examples of granular media having difficulties to flow, with clogging, agglomeration, intermittency. The CohPa project aims at a fundamental understanding of the behavior of cohesive granular materials, by combining experimental, numerical and theoretical approaches, with the ultimate goal of developping constitutive laws able to predict their behavior in any configuration. The two work packages correspond to two types of cohesive materials. In WP1, I will study cohesion resulting from the presence of adhesive forces between particles and I will focus on the development of model materials made of sticky grains with tailored surface properties as well as on real powders. By developing innovative rheological technics coupled with numerical simulations we hope to get a new understanding of the rheology. In WP2, I will study the cohesion arising from entanglement between frictional particles, as observed in an assembly of fibers (as in a bird nest or a cotton ball), or when mixing fibers and grains (typically roots in soils). They constitute a new class of disordered materials, in which the tensile strength results from a subtle coupling between geometry, elasticity and friction, which is not yet understood.

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