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Abstract: Experimental measurements of the onset of granular flow are directly comparedto predictions of the -shear transformation zone- STZ theory of amorphousplasticity. The STZ equations make it possible, on a coarse grained level, toincorporate the anisotropy of the particle contact network and its dynamicevolution including changes in the contact network direction under shearreversal. The STZ theory and experiment show qualitative agreement in thetransient and steady state shear forces and velocity profiles during the startof shear and shear reversal.



Autor: Michael L. Falk, Masahiro Toiya, Wolfgang Losert

Fuente: https://arxiv.org/







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