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Granular Materials at Meso-scale
Towards a Change of Scale Approach

This detailed volume proposes a new state-of-the-art way for developing an efficient change of scale to improve the modelling of mechanical granular materials—considering a meso-scale defined at the level of local arrays of particles, as opposed to the traditionally used micro-scale

Bernard Cambou (Author), Hélène Magoariec (Author), Ngoc-Son Nguyen (Author)

9781785480652, Elsevier Science

Hardback, published 2 August 2016

196 pages
22.9 x 15.1 x 1.9 cm, 0.33 kg

Granular Materials at Meso-scale: Towards a Change of Scale Approach proposes a new way for developing an efficient change of scale—considering a meso-scale defined at the level of local arrays of particles. The change of scale is known to be a very interesting way to improve the modelling of mechanical behavior granular materials. In the past, studies have been proposed using a micro-scale at the grain level to perform change of scale, but limitations have been proven for these approaches.

Definition and analysis of the phases are detailed, constituted by sets of meso-domains sharing the same texture characteristics. The authors propose a local constitutive model for the phases, allowing the constitutive model of the representative elementary volume to be definied from a change-of-scale approach and, finally, presenting the validation of obtained modeling on cyclic loadings.

1: Previous Approaches and Motivation for the Use of the Meso-scale

2: Definition of a Meso-scale for Granular Materials

3: Texture, Stress and Strain at the Meso-scale

4: Texture–Stress–Strain Relationship at the Meso-scale

5: Change of Scale Based on Phenomenological Modeling at the Meso-scale

Subject Areas: Mechanical engineering [TGB]

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