Abstract.
We discuss issues related to thermalization of plastic flow in the context of soft glassy rheology (SGR) theory. An apparent problem with the theory in its current form is that the stationarity of thermomechanical equilibrium obtained by requiring that its flow rule satisfy detailed balance in the absence of applied deformation requires plastic flow to be athermal. This prevents proper application of SGR to small-molecule and polymer glasses where plastic flow is often well thermalized. Clearly, one would like to have a SGR-like theory of thermalized plastic flow that satisfies stationarity. We discuss reasons why such a theory could prove very useful and clarify obstacles that must be overcome in order to develop it.
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Hoy, R.S. Thermalization of plastic flow versus stationarity of thermomechanical equilibrium in SGR theory. Eur. Phys. J. E 42, 2 (2019). https://doi.org/10.1140/epje/i2019-11763-5
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DOI: https://doi.org/10.1140/epje/i2019-11763-5