Inertial Effects on the Multi-Scale Stick-Slip Dynamics in Adhesive Tape Peeling

Explore the complex dynamics of adhesive tape peeling in this comprehensive lecture by Stéphane Santucci from the Laboratoire de Physique, CNRS, Ecole Normale Supérieure de Lyon. Delve into the multi-scale stick-slip instability that causes the characteristic screechy sound when peeling packing tape. Examine recent findings on the secondary instability occurring at smaller spatio-temporal scales than the macroscopic stick-slip. Learn about the precise characteristics of the peel front micro-instability, including its amplitude scaling with period and its relationship to the peel angle and tape backing bending modulus. Understand the local energy balance of the detachment process, where elastic bending energy converts to kinetic energy during micro-stick-slip cycles. Gain insights into the quantitative model describing the scaling law between amplitudes and periods of the micro-instability, as well as its dependencies on various factors. Review key references that provide in-depth analysis of bending to kinetic energy transfer, inertial and stick-slip regimes, and multi-scale dynamics in adhesive tape peeling.