{ "id": "2204.02795", "version": "v1", "published": "2022-04-06T13:05:49.000Z", "updated": "2022-04-06T13:05:49.000Z", "title": "Scaling theory for the statistics of slip at frictional interfaces", "authors": [ "Tom W. J. de Geus", "Matthieu Wyart" ], "categories": [ "cond-mat.dis-nn", "cond-mat.soft" ], "abstract": "Slip at a frictional interface occurs via intermittent events. Understanding how these events are nucleated, can propagate, or stop spontaneously remains a challenge, central to earthquake science and tribology. In the absence of disorder, rate-and-state approaches predict a diverging nucleation length at some stress $\\sigma^*$, beyond which cracks can propagate. Here we argue that disorder is a relevant perturbation to this description. We justify why the distribution of slip contains two parts: a power-law corresponding to `avalanches', and a `narrow' distribution of system-spanning `fracture' events. We derive novel scaling relations for avalanches, including a relation between the stress drop and the spatial extension of a slip event. We compute the cut-off length beyond which avalanches cannot be stopped by disorder, leading to a system-spanning fracture, and successfully test these predictions in a minimal model of frictional interfaces.", "revisions": [ { "version": "v1", "updated": "2022-04-06T13:05:49.000Z" } ], "analyses": { "keywords": [ "scaling theory", "statistics", "avalanches", "rate-and-state approaches predict", "frictional interface occurs" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }