Titel
Introduction to viscoelasticity and plasticity, and their relation to the underlying microscopic dynamics in soft matter systems
Veronique Trappe
Department of Physics, University of Fribourg
Abstract
Understanding the rheological behavior of complex fluids, and in particular its relation to the dynamics of the elementary microscopic constituents, is one of the open challenges in soft matter science. In this contribution, we give a brief introduction to linear shear rheology and passive microrheology of soft amorphous materials, and we then focus on the transition to non-linearity during oscillatory rheology tests performed on soft glassy materials. These materials exhibit solid-like properties at rest, but they display characteristics of fluids when a sufficiently large shear is applied. Significant progress in understanding such ‘fluidization’ has been recently achieved by combining rheometry with techniques capable to capture the microscopic dynamics induced by shear, and in particular by oscillatory shear. We here summarize some of these achievements, as an introduction to the field for a non-expert reader.
Stichwort
Soft glassy materialsNon-linear rheologyYieldingShear induced dynamicsPlastic rearrangementsMicrorheologyLarge amplitude oscillatory shear
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
Erschienen in
Titel
Physica A: Statistical Mechanics and its Applications
ISSN
0378-4371
Erscheinungsdatum
2023
Publication
Elsevier BV
Erscheinungsdatum
2023
Zugänglichkeit
Rechte
Rechteangabe
© 2023 The Author(s)
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