Heterogeneities in amorphous systems under shear

Jean‐Louis Barrat and Anaël LemaÎtre

in Dynamical Heterogeneities in Glasses, Colloids, and Granular Media

Published in print July 2011 | ISBN: 9780199691470
Published online September 2011 | e-ISBN: 9780191729799 | DOI:

Series: International Series of Monographs on Physics

Heterogeneities in amorphous systems under shear

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The last decade has seen major progresses in studies of elementary mechanisms of deformation in amorphous materials. This chapter starts with a review of physically based theories of plasticity, going back to the identification of “shear transformations” as early as the 1970s. The chapter shows how constructive criticism of the theoretical models permits to formulate questions concerning the role of structural disorder, mechanical noise, and long‐ranged elastic interactions. These questions provide the necessary context to understand what has motivated recent numerical studies. The chapter then summarizes their results, show why they had to focus on athermal systems, and point out the outstanding questions.

Keywords: glass transition; dynamical heterogeneity; shear; strain; plasticity

Chapter.  16928 words.  Illustrated.

Subjects: Mathematical and Statistical Physics

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