ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Quantitative earthquake-like statistical properties of the flow of soft materials below yield stress

Bera, P K and Majumdar, S and Ouillon, G and Sornette, D and Sood, A K (2020) Quantitative earthquake-like statistical properties of the flow of soft materials below yield stress. In: Nature Communications, 11 (1).

[img]
Preview
PDF
nat_com_11-1_2020.pdf - Published Version

Download (1MB) | Preview
[img]
Preview
PDF
41467_2019_13790_MOESM1_ESM.pdf - Published Supplemental Material

Download (23MB) | Preview
[img]
Preview
PDF
41467_2019_13790_MOESM2_ESM.pdf - Published Supplemental Material

Download (386kB) | Preview
[img]
Preview
PDF
41467_2019_13790_MOESM3_ESM.pdf - Published Supplemental Material

Download (150kB) | Preview
[img] Video (AVI)
41467_2019_13790_MOESM4_ESM.avi - Published Supplemental Material

Download (30MB)
[img] Video (AVI)
41467_2019_13790_MOESM5_ESM.avi - Published Supplemental Material

Download (30MB)
Official URL: https://dx.doi.org/10.1038/s41467-019-13790-2

Abstract

The flow behavior of soft materials below the yield stress can be rich and is not fully understood. Here, we report shear-stress-induced reorganization of three-dimensional solid-like soft materials formed by closely packed nematic domains of surfactant micelles and a repulsive Wigner glass formed by anisotropic clay nano-discs having ionic interactions. The creep response of both the systems below the yield stress results in angular velocity fluctuations of the shearing plate showing large temporal burst-like events that resemble seismic foreshocks-aftershocks data measuring the ground motion during earthquake avalanches. We find that the statistical properties of the quake events inside such a burst map on to the scaling relations for magnitude and frequency distribution of earthquakes, given by Gutenberg-Richter and Omori laws, and follow a power-law distribution of the inter-occurrence waiting time. In situ polarized optical microscopy reveals that during these events the system self-organizes to a much stronger solid-like state.

Item Type: Journal Article
Publication: Nature Communications
Publisher: Nature Research
Additional Information: Copyright of this article belongs to Nature Research
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 22 Jan 2020 08:50
Last Modified: 22 Jan 2020 08:50
URI: http://eprints.iisc.ac.in/id/eprint/64352

Actions (login required)

View Item View Item