Spreading plastic failure as a mechanism for the shear modulus reduction in amorphous solids

Vijayakumar Chikkadi; Oleg Gendelman; Valery Ilyin; J. Ashwin; Itamar Procaccia; Carmel A.B.Z. Shor

doi:10.1209/0295-5075/110/48001

Spreading plastic failure as a mechanism for the shear modulus reduction in amorphous solids

Vijayakumar Chikkadi, Oleg Gendelman, Valery Ilyin, J. Ashwin, Itamar Procaccia, Carmel A.B.Z. Shor

Technion - Israel Institute of Technology, Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

We focus on the observed reduction in shear modulus when the stress on an amorphous solid is increased beyond the initial linear region. Careful numerical quasi-static simulations reveal an intimate relation between plastic failure and the reduction in shear modulus. The attainment of the smallest value of the shear modulus is identified with spreading of the regions that underwent a plastic event. We present an elementary "two-state" model that interpolates between failed and virgin regions and provides a simple and effective characterization of the phenomenon.

Original language	English
Article number	48001
Journal	EPL
Volume	110
Issue number	4
DOIs	https://doi.org/10.1209/0295-5075/110/48001
State	Published - 1 May 2015

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1209/0295-5075/110/48001

https://arxiv.org/abs/1312.4136License: Other

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AU - Ilyin, Valery

AU - Ashwin, J.

AU - Procaccia, Itamar

AU - Shor, Carmel A.B.Z.

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AB - We focus on the observed reduction in shear modulus when the stress on an amorphous solid is increased beyond the initial linear region. Careful numerical quasi-static simulations reveal an intimate relation between plastic failure and the reduction in shear modulus. The attainment of the smallest value of the shear modulus is identified with spreading of the regions that underwent a plastic event. We present an elementary "two-state" model that interpolates between failed and virgin regions and provides a simple and effective characterization of the phenomenon.

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Spreading plastic failure as a mechanism for the shear modulus reduction in amorphous solids

Abstract

All Science Journal Classification (ASJC) codes

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