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Stress tensors for granular materials as non simple continua

Froiio, Francesco / Gerolymatou, Eleni

We discuss the microstructural origin of stress tensors for granular materials in the context of “non simple” continuum models, of the micropolar and of the second-gradient type. Stress tensors are looked upon as generalised forces in the sense of analytical mechanics and we derive expressions that provide estimates of these quantities on the base of forces and couples exchanged between the grains in a Representative Elementary Volume (REV).

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Stress tensors for granular materials as non simple continua

Froiio, Francesco / Gerolymatou, Eleni

We discuss the microstructural origin of stress tensors for granular materials in the context of “non simple” continuum models, of the micropolar and of the second-gradient type. Stress tensors are looked upon as generalised forces in the sense of analytical mechanics and we derive expressions that provide estimates of these quantities on the base of forces and couples exchanged between the grains in a Representative Elementary Volume (REV).

Stress tensors for granular materials as non simple continua

Froiio, Francesco / Gerolymatou, Eleni

We discuss the microstructural origin of stress tensors for granular materials in the context of “non simple” continuum models, of the micropolar and of the second-gradient type. Stress tensors are looked upon as generalised forces in the sense of analytical mechanics and we derive expressions that provide estimates of these quantities on the base of forces and couples exchanged between the grains in a Representative Elementary Volume (REV).

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Title:

Stress tensors for granular materials as non simple continua

Contributors:

Froiio, Francesco (author) / Gerolymatou, Eleni (author)

Published in:

European Journal of Environmental and Civil Engineering ; 14 ; 1167-1183

Publication date:

2010-09-01

Size:

17 pages

ISSN:

1964-8189 , 2116-7214

DOI:

https://doi.org/10.1080/19648189.2010.9693286

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

granular materials , generalised continuum models , stress tensors , averaging , matériaux granulaires , modèles continus généralisés , tenseurs de contraintes , changement d'échelle

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