Particle pinning suppresses spinodal criticality in the shear banding instability
Soft Condensed Matter
2019-11-21 v2 Disordered Systems and Neural Networks
Abstract
Strained amorphous solids often fail mechanically by creating a shear-band. It had been understood that the shear banding instability is usefully described as crossing a spinodal point (with disorder) in an appropriate thermodynamic description. It remained contested however whether the spinodal is critical (with divergent correlation length) or not. Here we offer evidence for critical spinodal by using particle pinning. For a finite concentration of pinned particles the correlation length is bounded by the average distance between pinned particles, but without pinning it is bounded by the system size.
Cite
@article{arxiv.1903.03020,
title = {Particle pinning suppresses spinodal criticality in the shear banding instability},
author = {Bhanu Prasad Bhowmik and Smarajit Karmakar and Itamar Procaccia and Corrado Rainone},
journal= {arXiv preprint arXiv:1903.03020},
year = {2019}
}
Comments
5 pages, 5 figures - error bars have been added to figure 2, all figures have been reformatted