Non-equilibrium behavior in materials

Feb 24, 2011, 2:15 PM
FB42 (AlbaNova Main Building)


AlbaNova Main Building


Mikko Alava (Helsinki University of Technology)


The irreversible yielding in materials has usually been described in the terms of rheology, but recent advances in from glasses to plasticity mediated by topological defects are starting to show this century-old picture to be wrong. In this talk I will discuss three issues: what happens during the deformation of crystalline solids, which is related to collective dislocation dynamics, how such phenomena are indeed more universal and easy to see during creep deformation, and thirdly some ongoing work on the internal dynamics of complex suspension flows. These are often thixotropic, and exhibit aging.

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