Publication Date

9-4-2019

Journal

Materials Research Letters

Volume

12

Issue

7

First Page

496

Last Page

502

Department

Mechanical Engineering

Second Department

Chemical Engineering

Abstract

Contradictory scaling behavior in experiments testing the principle of universality may be due to external oscillations. Thus, the effect of damped oscillatory external forces on slip avalanches in slowly deformed solids is simulated using a mean-field model. Akin to a resonance effect, oscillatory driving forces change the dynamics of avalanches with durations close to the oscillation period. This problem can be avoided by tuning mechanical resonance frequencies away from the range of the inverse avalanche durations. The results provide critical guidance for experimental tests for universality and a quantitative understanding of avalanche dynamics under a wide range of driving conditions.

DOI

https://doi.org/10.1080/21663831.2019.1659437

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