Glassy Dynamics and Flow Pr
نویسندگان
چکیده
which are c high concen that the mot duced unless consequence like weak e flow like vis y. Yielding rials as diff tissues [3], essential rol as ceramic coating. Exp is often asso are well de Bulkley equ nomenologic a are very s ing it difficu ogy. In that behavior of tally accessi Recently, cal propertie simply refle dynamics [6 structural r trapped by t barriers befo mal motion temperature elements. A trapped in stress, eleme to macrosco rheological In particular matches the nificant chal lying param
منابع مشابه
Enhancement of structural rearrangement in glassy sys - tems under shear flow
– We extend the analysis of the mean field schematic model recently introduced [1] for the description of glass forming liquids to the case of a supercooled fluid subjected to a shear flow of rate γ. After quenching the system to a low temperature T , a slow glassy regime is observed before stationarity is achieved at the characteristic time τg. τg is of the order of the usual equilibration tim...
متن کاملNote on kinematics, dynamics, and thermodynamics of plastic glassy media, e-print cond-mat/0304190 in Electronic Archive http://arXiv.org
Abstract. Unified geometric approach to describing kinematics of elastic and plastic deformations of continuous media is suggested. On the base of this approach we study mechanical deformations, viscous flow, and heat transport in glassy plastic media. As a result we derive appropriate differential equations for these phenomena in a form applicable to liquids, elastic solids, and to plastic sol...
متن کاملYield stress, heterogeneities and activated processes in soft glassy materials*
The rheological behaviour of soft glassy materials results essentially from the interplay between shearing forces and an intrinsic slow dynamics. This competition can be described by a microscopic theory, which can be viewed as a nonequilibrium schematic mode-coupling theory. This statistical mechanics approach to rheology results in a series of detailed theoretical predictions, some of which a...
متن کاملGlassy dynamics: mean-field landscape pictures versus growing length scale scenarii
This is a short review on the compatibility between (a) mean-field, mode-coupling theories of the glass transition, where potential energy landscape ideas are natural, and (b) the necessity of describing the slowing down of glassy materials in terms of a growing cooperative length, absent from mean-field descriptions. We summarize some of the outstanding questions that remain before we can say ...
متن کاملShear banding in soft glassy materials.
Many soft materials, including microgels, dense colloidal emulsions, star polymers, dense packings of multilamellar vesicles, and textured morphologies of liquid crystals, share the basic 'glassy' features of structural disorder and metastability. These in turn give rise to several notable features in the low frequency shear rheology (deformation and flow properties) of these materials: in part...
متن کامل