Avalanches in Strained Amorphous Solids: Does Inertia Destroy Critical Behavior?

Details Avalanches in Strained Amorphous Solids: Does Inertia Destroy Critical Behavior? Avalanches in Strained Amorphous Solids: Does Inertia Destroy Critical Behavior?

2012-04-26

arxiv.org/abs/1204.5965v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 3 figures

Scientific paper

Simulations are used to determine the effect of inertia on athermal shear of a two-dimensional binary Lennard-Jones glass. In the quasistatic limit, shear occurs through a series of rapid avalanches. The distribution of avalanches is analyzed using finite-size scaling with thousands to millions of particles. Inertia takes the system to a new underdamped universality class rather than driving the system away from criticality. Scaling exponents are determined for the underdamped and overdamped limits and a critical damping that separates the two regimes. Systems are in the overdamped universality class even when most vibrational modes are underdamped.

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