2019
DOI: 10.1103/physrevlett.122.068005
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Bending to Kinetic Energy Transfer in Adhesive Peel Front Microinstability

Abstract: 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 Amss ∝ T 1/3 mss , with a pre-factor 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 micro-instability, our theoretical model shows that the … Show more

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Cited by 15 publications
(8 citation statements)
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“…For larger aspect ratios, successive shedding and stick-slip events occur, as seen from the jumps in detached and reattached area. Corresponding jumps in the force-displacement response are typical of stick-slip, and are often reported experimentally (Ponce et al, 2015;Amouroux et al, 2001;Collino et al, 2014;Zhu et al, 2019;Baumberger et al, 2002;Cortet et al, 2007;Zotti et al, 2019). Reattachement persists as peeling progresses, as seen by the increasing values of η R , up to a peak value beyond which the entire layer is activated and a curling front begins to propagate.…”
Section: Force-displacement Responsesupporting
confidence: 55%
See 1 more Smart Citation
“…For larger aspect ratios, successive shedding and stick-slip events occur, as seen from the jumps in detached and reattached area. Corresponding jumps in the force-displacement response are typical of stick-slip, and are often reported experimentally (Ponce et al, 2015;Amouroux et al, 2001;Collino et al, 2014;Zhu et al, 2019;Baumberger et al, 2002;Cortet et al, 2007;Zotti et al, 2019). Reattachement persists as peeling progresses, as seen by the increasing values of η R , up to a peak value beyond which the entire layer is activated and a curling front begins to propagate.…”
Section: Force-displacement Responsesupporting
confidence: 55%
“…This complexity is primarily due to the limited available computational tools that can account for the layers ability to re-attach, at a new location, if it comes back into contact with the substrate. Nonetheless, experimental evidence of this phenomenon has been repeatedly reported (Cohen et al, 2018;Ponce et al, 2015;Amouroux et al, 2001;Collino et al, 2014;Zhu et al, 2019;Baumberger et al, 2002;Cortet et al, 2007;Zotti et al, 2019), and can occur even when pulling at a prescribed angle (Collino et al, 2014;Dalbe et al, 2015). The stick-slip behavior is also evident from the force-displacement curves that show sudden drops in the load followed by recovery in controlled pulling tests (Ponce et al, 2015;Cohen et al, 2018).…”
Section: Introductionmentioning
confidence: 84%
“…[12][13][14][15] Distortions may also occur during more rapid propagation where material inertia leads to wave-mediated interactions along the fracture front 14,15 and thus local asperities lead to remarkably rapid transverse propagation of these crack front distortions. [16][17][18][19][20][21][22][23] More generally, material heterogeneities result in irregular crack front propagation in both space and time. Even in the absence of local heterogeneities any distortion of a crack front precludes the use of approximation of the 2D projection.…”
Section: Main Textmentioning
confidence: 99%
“…Present computational contact models do not account for all these three features at once. However, this would be desirable in order to reproduce and interpret a wide range of experimental observations for such systems, including gecko pads (Autumn et al, 2002), tape peeling (De Zotti et al, 2019), or rubber friction (Sahli et al, 2018).…”
Section: Introductionmentioning
confidence: 99%