A model for stable interfacial crack growth

TL;DR

This paper introduces a model for stable interfacial crack growth that captures two distinct self-affine scaling regimes, reflecting different physical mechanisms observed in experiments.

Contribution

The model unifies the investigation of two separate physical mechanisms responsible for different crack scaling behaviors within a single framework.

Findings

Two distinct self-affine regimes identified in the model

Model reproduces experimental scaling properties

Supports the hypothesis of two different physical mechanisms

Abstract

We present a model for stable crack growth in a constrained geometry. The morphology of such cracks show scaling properties consistent with self affinity. Recent experiments show that there are two distinct self-affine regimes, one on small scales whereas the other at large scales. It is believed that two different physical mechanisms are responsible for this. The model we introduce aims to investigate the two mechanisms in a single system. We do find two distinct scaling regimes in the model.