Uniaxial compression of 2d and 3d packings : electrical conductivity measurements
Résumé
We measured the conductivity of 2d and 3d packings of conducting grains under a uniaxial vertical pressure. The conductance as a function of stress is a power law with an exponent which is different from the microscopic Hertz exponent. We propose a simple theoretical explanation.
Domaines
Articles anciens
Origine : Accord explicite pour ce dépôt
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