Kinetic theory of plastic flow in soft glassy materials.

  title={Kinetic theory of plastic flow in soft glassy materials.},
  author={Lyd{\'e}ric Bocquet and Annie Colin and Armand Ajdari},
  journal={Physical review letters},
  volume={103 3},
A kinetic model for the elastoplastic dynamics of a jammed material is proposed, which takes the form of a nonlocal--Boltzmann-like--kinetic equation for the stress distribution function. Coarse graining this equation yields a nonlocal constitutive law for the flow, exhibiting as a key dynamic quantity the local rate of plastic events. This quantity, interpreted as a local fluidity, is spatially correlated with a correlation length diverging in the quasistatic limit, i.e., close to yielding. In… 

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