Dynamics of the peel front and the nature of acoustic emission during peeling of an adhesive tape

TL;DR

This study models the peel front dynamics and acoustic emissions during tape peeling, revealing how dissipation, inertia, and velocity influence the front behavior and AE burst statistics, with implications for understanding critical states in peeling.

Contribution

Introduces a dissipative energy component into a peel front model, capturing AE burst statistics and transition from smooth to stuck-peeled configurations.

Findings

AE burst distribution follows power law with two regimes

Peel front varies from smooth to stuck-peeled based on parameters

High pull velocity leads to critical state-like behavior

Abstract

We investigate the peel front dynamics and acoustic emission of an adhesive tape within the context of a recent model by including an additional dissipative energy that mimics bursts of acoustic signals. We find that the nature of the peeling front can vary from smooth to stuck-peeled configuration depending on the values of dissipation coefficient, inertia of the roller, mass of the tape. Interestingly, we find that the distribution of AE bursts shows a power law statistics with two scaling regimes with increasing pull velocity as observed in experiments. In this regimes, the stuck-peeled configuration is similar to the `edge of peeling' reminiscent of a system driven to a critical state.