Predicting plasticity in disordered solids from structural indicators
Abstract
Amorphous solids lack long-range order. Therefore identifying structural defects -- akin to dislocations in crystalline solids -- that carry plastic flow in these systems remains a daunting challenge. By comparing many different structural indicators in computational models of glasses, under a variety of conditions we carefully assess which of these indicators are able to robustly identify the structural defects responsible for plastic flow in amorphous solids. We further demonstrate that the density of defects changes as a function of material preparation and strain in a manner that is highly correlated with the macroscopic material response. Our work represents an important step towards predicting how and when an amorphous solid will fail from its microscopic structure.
Cite
@article{arxiv.2003.11629,
title = {Predicting plasticity in disordered solids from structural indicators},
author = {D. Richard and M. Ozawa and S. Patinet and E. Stanifer and B. Shang and S. A. Ridout and B. Xu and G. Zhang and P. K. Morse and J. -L. Barrat and L. Berthier and M. L. Falk and P. Guan and A. J. Liu and K. Martens and S. Sastry and D. Vandembroucq and E. Lerner and M. L. Manning},
journal= {arXiv preprint arXiv:2003.11629},
year = {2021}
}