Journal
PHYSICAL REVIEW LETTERS
Volume 122, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.068005
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Funding
- ANR [ANR-17-CE08-0008]
- MON MegaGrant [14.W03.31.0002]
- French/Norwegian International Associated Laboratory (LIA) D-FFRACT
- Agence Nationale de la Recherche (ANR) [ANR-17-CE08-0008] Funding Source: Agence Nationale de la Recherche (ANR)
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We 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 A(mss) alpha T-mss(1/3), with a prefactor evolving slightly with the peel angle theta, 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.
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