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Issue 48, 2014
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Peeling-angle dependence of the stick-slip instability during adhesive tape peeling

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Abstract

The influence of peeling angle on the dynamics observed during the stick-slip peeling of an adhesive tape has been investigated. This study relies on a new experimental setup for peeling at a constant driving velocity while keeping constant the peeling angle and peeled tape length. The thresholds of the instability are shown to be associated with a subcritical bifurcation and bistability of the system. The velocity onset of the instability is moreover revealed to strongly depend on the peeling angle. This could be the consequence of peeling angle dependance of either the fracture energy of the adhesive-substrate joint or the effective stiffness at play between the peeling front and the point at which the peeling is enforced. The shape of the peeling front velocity fluctuations is finally shown to progressively change from typical stick-slip relaxation oscillations to nearly sinusoidal oscillations as the peeling angle is increased. We suggest that this transition might be controlled by inertial effects possibly associated with the propagation of the peeling force fluctuations through elongation waves in the peeled tape.

Graphical abstract: Peeling-angle dependence of the stick-slip instability during adhesive tape peeling

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Publication details

The article was received on 19 Aug 2014, accepted on 06 Oct 2014 and first published on 03 Nov 2014


Article type: Paper
DOI: 10.1039/C4SM01840K
Citation: Soft Matter, 2014,10, 9637-9643
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    Peeling-angle dependence of the stick-slip instability during adhesive tape peeling

    M. Dalbe, S. Santucci, L. Vanel and P. Cortet, Soft Matter, 2014, 10, 9637
    DOI: 10.1039/C4SM01840K

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