Bending to Kinetic Energy Transfer in Adhesive Peel Front Microinstability
2019; American Physical Society; Volume: 122; Issue: 6 Linguagem: Inglês
10.1103/physrevlett.122.068005
ISSN1092-0145
AutoresVincent de Zotti, Kenny Rapina, Pierre-Philippe Cortet, Loïc Vanel, Stéphane Santucci,
Tópico(s)Surface Modification and Superhydrophobicity
ResumoWe report an extensive experimental study of a detachment front dynamics instability, appearing at microscopic scales during the peeling of adhesive tapes. The amplitude of this instability scales with its period as Amss∝Tmss1/3, with a prefactor evolving slightly with the peel angle θ, and increasing systematically with the bending modulus B of the tape backing. Establishing a local energy budget of the detachment process during one period of this microinstability, our theoretical model shows that the elastic bending energy stored in the portion of tape to be peeled is converted into kinetic energy, providing a quantitative description of the experimental scaling law.Received 17 July 2018Revised 9 November 2018DOI:https://doi.org/10.1103/PhysRevLett.122.068005© 2019 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasFracturePhysical SystemsFront propagationNonlinear wavesNonlinear Dynamics
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