Publication Date
9-4-2019
Description
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.
Journal
Materials Research Letters
Volume
12
Issue
7
First Page
496
Last Page
502
Department
Mechanical Engineering
Second Department
Chemical Engineering
Link to Published Version
https://doi.org/10.1080/21663831.2019.1659437
DOI
https://doi.org/10.1080/21663831.2019.1659437
Recommended Citation
McFaul, Louis W.; Wright, Wendelin J.; Sickle, Jordan; and Dahmen, Karin A.. "Force Oscillations Distort Avalanche Shapes." Materials Research Letters (2019) : 496-502.
Included in
Condensed Matter Physics Commons, Statistical, Nonlinear, and Soft Matter Physics Commons, Structural Materials Commons