Abstract
When amorphous solids are subjected to simple or pure strain, they exhibit elastic increase in stress, punctuated by plastic events that become denser (in strain) upon increasing the system size. It is customary to assume in theoretical models that the stress released in each plastic event is redistributed according to the linear Eshelby kernel, causing avalanches of additional stress release. Here we demonstrate that, contrary to the uniform affine strain resulting from simple or pure strain, each plastic event is associated with a nonuniform strain that gives rise to a displacement field that contains quadrupolar and dipolar charges that typically screen the linear elastic phenomenology and introduce anomalous length scales and influence the form of the stress redistribution. An important question that opens up is how to take this into account in elastoplastic models of shear induced phenomena like shear banding.
Original language | English |
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Article number | L042901 |
Journal | Physical Review E |
Volume | 108 |
Issue number | 4 |
DOIs | |
Publication status | Published - Oct 2023 |
Bibliographical note
Acknowledgment. This work has been supported in part by a joint grant between the Israel Science Foundation and the National Natural Science Foundation of China, Grant No. 3492/21, and by the Minerva Foundation, Munich, Germany. C.M. acknowledges funding from the Interaction fellowship and SERB (Ramanujan fellowship File No. RJF/2021/00012).All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics