We study the statistics of plastic rearrangement events in a simulated amorphous solid at T=0. Events are characterized by the energy release and the "slip volume", the product of plastic strain and system volume. Their distributions for a given system size L appear to be exponential, but a characteristic event size cannot be inferred, because the mean values of these quantities increase as L-alpha with alpha similar to 3/2. In contrast with results obtained in 2D models, we do not see simply connected avalanches. The exponent suggests a fractal shape of the avalanches, which is also evidenced by the mean fractal dimension and participation ratio.
Bibliographical noteCopyright 2007 American Physical Society
- METALLIC GLASSES
- CONTINUUM ELASTOPLASTIC BEHAVIOR
Bailey, N., Schiøtz, J., Lemaître, A., & Jacobsen, K. W. (2007). Avalanche size scaling in sheared three-dimensional amorphous solid. Physical Review Letters, 98(9), 095501. https://doi.org/10.1103/PhysRevLett.98.095501