Kinetic Theory of Plastic Flow in Soft Glassy Materials Export

@article{bocquet09, abstract = {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 line with recent experimental and numerical observations, we predict finite size effects in the flow behavior, as well as the absence of an intrinsic local flow curve.}, author = {Bocquet, Lyd\'{e}ric and Colin, Annie and Ajdari, Armand}, citeulike-article-id = {5196414}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000103000003036001000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v103/e036001}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevLett.103.036001}, doi = {10.1103/PhysRevLett.103.036001}, journal = {Physical Review Letters}, keywords = {glass, rheology, shear}, number = {3}, pages = {036001}, posted-at = {2009-09-21 20:39:52}, priority = {0}, publisher = {APS}, title = {Kinetic Theory of Plastic Flow in Soft Glassy Materials}, url = {http://dx.doi.org/10.1103/PhysRevLett.103.036001}, volume = {103}, year = {2009} }

TY - JOUR ID - bocquet09 L3 - citeulike-article-id:5196414 N2 - 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 line with recent experimental and numerical observations, we predict finite size effects in the flow behavior, as well as the absence of an intrinsic local flow curve. IS - 3 JF - Physical Review Letters EP - 036001 TI - Kinetic Theory of Plastic Flow in Soft Glassy Materials PB - APS VL - 103 SP - 036001 KW - glass KW - rheology KW - shear AU - Bocquet, Lydéric AU - Colin, Annie AU - Ajdari, Armand PY - 2009/// UR - http://dx.doi.org/10.1103/PhysRevLett.103.036001 ER -