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Loïc Vanel – One of the best experts on this subject based on the ideXlab platform.

  • Inertial and stick-slip regimes of unstable Adhesive Tape peeling
    Soft Matter, 2016
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Pierre-philippe Cortet, Matteo Ciccotti, Richard Villey, Loïc Vanel
    Abstract:

    We present an experimental characterization of the detachment front unstable dynamics observed during the peeling of pressure sensitive Adhesives. We use an experimental set-up specifically designed to control the peeling angle θ and the peeled Tape length L, while peeling an Adhesive Tape from a flat substrate at a constant driving velocity V. High-speed imaging allows us to report the evolution of the period and amplitude of the front oscillations, as well as the relative durations of their fast and slow phases, as a function of the control parameters V, L and θ. Our study shows that, as the driving velocity or the peeling angle increases, the oscillations of the peeling front progressively evolve from genuine “stick-slip” oscillations, made of alternating long stick phases and very brief slip phases, to sinusoidal oscillations of amplitude twice the peeling velocity. We propose a model which, taking into account the peeling angle-dependent kinetic enerenergy cost to accelerate and decelerate the peeled Tape, explains the transition from the “stick-slip” to the “inertial” regime of the dynamical instability. Using independent direct measurements of the effective fracture energy of the Adhesive-substrate joint, we show that our model quantitatively accounts for the two regimes of the unstable dynamics.

  • Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling
    Physical Review Letters, 2015
    Co-Authors: Marie Julie Dalbe, Pierre-philippe Cortet, Matteo Ciccotti, Loïc Vanel, Stéphane Santucci
    Abstract:

    Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an Adhesive Tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well-separated spatiotemporal scales, which correspond to microscopic and macroscopic dynamical stick-slip instabilities. While the periodic release of the stretch energy of the whole peeled ribbon drives the classical macro-stick-slip, we show that the micro-stick-slip, due to the regular propagation of transverse dynamic fractures discovered by Thoroddsen et al. [Phys. Rev. E 82, 046107 (2010)], is related to a high-frequency periodic release of the elastic bending energy of the Adhesive ribbon concentrated in the vicinity of the peeling front.

  • Peeling-angle dependence of the stick-slip instability during Adhesive Tape peeling.
    Soft matter, 2014
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Loïc Vanel, Pierre-philippe Cortet
    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.

Pierre-philippe Cortet – One of the best experts on this subject based on the ideXlab platform.

  • Inertial and stick-slip regimes of unstable Adhesive Tape peeling
    Soft Matter, 2016
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Pierre-philippe Cortet, Matteo Ciccotti, Richard Villey, Loïc Vanel
    Abstract:

    We present an experimental characterization of the detachment front unstable dynamics observed during the peeling of pressure sensitive Adhesives. We use an experimental set-up specifically designed to control the peeling angle θ and the peeled Tape length L, while peeling an Adhesive Tape from a flat substrate at a constant driving velocity V. High-speed imaging allows us to report the evolution of the period and amplitude of the front oscillations, as well as the relative durations of their fast and slow phases, as a function of the control parameters V, L and θ. Our study shows that, as the driving velocity or the peeling angle increases, the oscillations of the peeling front progressively evolve from genuine “stick-slip” oscillations, made of alternating long stick phases and very brief slip phases, to sinusoidal oscillations of amplitude twice the peeling velocity. We propose a model which, taking into account the peeling angle-dependent kinetic energy cost to accelerate and decelerate the peeled Tape, explains the transition from the “stick-slip” to the “inertial” regime of the dynamical instability. Using independent direct measurements of the effective fracture energy of the Adhesive-substrate joint, we show that our model quantitatively accounts for the two regimes of the unstable dynamics.

  • Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling
    Physical Review Letters, 2015
    Co-Authors: Marie Julie Dalbe, Pierre-philippe Cortet, Matteo Ciccotti, Loïc Vanel, Stéphane Santucci
    Abstract:

    Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an Adhesive Tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well-separated spatiotemporal scales, which correspond to microscopic and macroscopic dynamical stick-slip instabilities. While the periodic release of the stretch energy of the whole peeled ribbon drives the classical macro-stick-slip, we show that the micro-stick-slip, due to the regular propagation of transverse dynamic fractures discovered by Thoroddsen et al. [Phys. Rev. E 82, 046107 (2010)], is related to a high-frequency periodic release of the elastic bending energy of the Adhesive ribbon concentrated in the vicinity of the peeling front.

  • Peeling-angle dependence of the stick-slip instability during Adhesive Tape peeling.
    Soft matter, 2014
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Loïc Vanel, Pierre-philippe Cortet
    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.

Stéphane Santucci – One of the best experts on this subject based on the ideXlab platform.

  • Inertial and stick-slip regimes of unstable Adhesive Tape peeling
    Soft Matter, 2016
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Pierre-philippe Cortet, Matteo Ciccotti, Richard Villey, Loïc Vanel
    Abstract:

    We present an experimental characterization of the detachment front unstable dynamics observed during the peeling of pressure sensitive Adhesives. We use an experimental set-up specifically designed to control the peeling angle θ and the peeled Tape length L, while peeling an Adhesive Tape from a flat substrate at a constant driving velocity V. High-speed imaging allows us to report the evolution of the period and amplitude of the front oscillations, as well as the relative durations of their fast and slow phases, as a function of the control parameters V, L and θ. Our study shows that, as the driving velocity or the peeling angle increases, the oscillations of the peeling front progressively evolve from genuine “stick-slip” oscillations, made of alternating long stick phases and very brief slip phases, to sinusoidal oscillations of amplitude twice the peeling velocity. We propose a model which, taking into account the peeling angle-dependent kinetic energy cost to accelerate and decelerate the peeled Tape, explains the transition from the “stick-slip” to the “inertial” regime of the dynamical instability. Using independent direct measurements of the effective fracture energy of the Adhesive-substrate joint, we show that our model quantitatively accounts for the two regimes of the unstable dynamics.

  • Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling
    Physical Review Letters, 2015
    Co-Authors: Marie Julie Dalbe, Pierre-philippe Cortet, Matteo Ciccotti, Loïc Vanel, Stéphane Santucci
    Abstract:

    Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an Adhesive Tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well-separated spatiotemporal scales, which correspond to microscopic and macroscopic dynamical stick-slip instabilities. While the periodic release of the stretch energy of the whole peeled ribbon drives the classical macro-stick-slip, we show that the micro-stick-slip, due to the regular propagation of transverse dynamic fractures discovered by Thoroddsen et al. [Phys. Rev. E 82, 046107 (2010)], is related to a high-frequency periodic release of the elastic bending energy of the Adhesive ribbon concentrated in the vicinity of the peeling front.

  • Peeling-angle dependence of the stick-slip instability during Adhesive Tape peeling.
    Soft matter, 2014
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Loïc Vanel, Pierre-philippe Cortet
    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.

Marie Julie Dalbe – One of the best experts on this subject based on the ideXlab platform.

  • Inertial and stick-slip regimes of unstable Adhesive Tape peeling
    Soft Matter, 2016
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Pierre-philippe Cortet, Matteo Ciccotti, Richard Villey, Loïc Vanel
    Abstract:

    We present an experimental characterization of the detachment front unstable dynamics observed during the peeling of pressure sensitive Adhesives. We use an experimental set-up specifically designed to control the peeling angle θ and the peeled Tape length L, while peeling an Adhesive Tape from a flat substrate at a constant driving velocity V. High-speed imaging allows us to report the evolution of the period and amplitude of the front oscillations, as well as the relative durations of their fast and slow phases, as a function of the control parameters V, L and θ. Our study shows that, as the driving velocity or the peeling angle increases, the oscillations of the peeling front progressively evolve from genuine “stick-slip” oscillations, made of alternating long stick phases and very brief slip phases, to sinusoidal oscillations of amplitude twice the peeling velocity. We propose a model which, taking into account the peeling angle-dependent kinetic energy cost to accelerate and decelerate the peeled Tape, explains the transition from the “stick-slip” to the “inertial” regime of the dynamical instability. Using independent direct measurements of the effective fracture energy of the Adhesive-substrate joint, we show that our model quantitatively accounts for the two regimes of the unstable dynamics.

  • Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling
    Physical Review Letters, 2015
    Co-Authors: Marie Julie Dalbe, Pierre-philippe Cortet, Matteo Ciccotti, Loïc Vanel, Stéphane Santucci
    Abstract:

    Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an Adhesive Tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well-separated spatiotemporal scales, which correspond to microscopic and macroscopic dynamical stick-slip instabilities. While the periodic release of the stretch energy of the whole peeled ribbon drives the classical macro-stick-slip, we show that the micro-stick-slip, due to the regular propagation of transverse dynamic fractures discovered by Thoroddsen et al. [Phys. Rev. E 82, 046107 (2010)], is related to a high-frequency periodic release of the elastic bending energy of the Adhesive ribbon concentrated in the vicinity of the peeling front.

  • Peeling-angle dependence of the stick-slip instability during Adhesive Tape peeling.
    Soft matter, 2014
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Loïc Vanel, Pierre-philippe Cortet
    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.

Matteo Ciccotti – One of the best experts on this subject based on the ideXlab platform.

  • Inertial and stick-slip regimes of unstable Adhesive Tape peeling
    Soft Matter, 2016
    Co-Authors: Marie Julie Dalbe, Stéphane Santucci, Pierre-philippe Cortet, Matteo Ciccotti, Richard Villey, Loïc Vanel
    Abstract:

    We present an experimental characterization of the detachment front unstable dynamics observed during the peeling of pressure sensitive Adhesives. We use an experimental set-up specifically designed to control the peeling angle θ and the peeled Tape length L, while peeling an Adhesive Tape from a flat substrate at a constant driving velocity V. High-speed imaging allows us to report the evolution of the period and amplitude of the front oscillations, as well as the relative durations of their fast and slow phases, as a function of the control parameters V, L and θ. Our study shows that, as the driving velocity or the peeling angle increases, the oscillations of the peeling front progressively evolve from genuine “stick-slip” oscillations, made of alternating long stick phases and very brief slip phases, to sinusoidal oscillations of amplitude twice the peeling velocity. We propose a model which, taking into account the peeling angle-dependent kinetic energy cost to accelerate and decelerate the peeled Tape, explains the transition from the “stick-slip” to the “inertial” regime of the dynamical instability. Using independent direct measurements of the effective fracture energy of the Adhesive-substrate joint, we show that our model quantitatively accounts for the two regimes of the unstable dynamics.

  • Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling
    Physical Review Letters, 2015
    Co-Authors: Marie Julie Dalbe, Pierre-philippe Cortet, Matteo Ciccotti, Loïc Vanel, Stéphane Santucci
    Abstract:

    Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an Adhesive Tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well-separated spatiotemporal scales, which correspond to microscopic and macroscopic dynamical stick-slip instabilities. While the periodic release of the stretch energy of the whole peeled ribbon drives the classical macro-stick-slip, we show that the micro-stick-slip, due to the regular propagation of transverse dynamic fractures discovered by Thoroddsen et al. [Phys. Rev. E 82, 046107 (2010)], is related to a high-frequency periodic release of the elastic bending energy of the Adhesive ribbon concentrated in the vicinity of the peeling front.

  • Intermittent stick-slip dynamics during the peeling of an Adhesive Tape from a roller
    Physical Review E – Statistical Nonlinear and Soft Matter Physics, 2013
    Co-Authors: Pierre-philippe Cortet, Marie Julie Dalbe, Stéphane Santucci, Matteo Ciccotti, Claudia Guerra, Caroline Cohen, Loïc Vanel
    Abstract:

    We study experimentally the fracture dynamics during the peeling at a constant velocity of a roller Adhesive Tape mounted on a freely rotating pulley. Thanks to a high speed camera, we measure, in an intermediate range of peeling velocities, high frequency oscillations between phases of slow and rapid propagation of the peeling fracture. This so-called stick-slip regime is well known as the consequence of a decreasing fracture energy of the Adhesive in a certain range of peeling velocity coupled to the elasticity of the peeled Tape. Simultaneously with stick slip, we observe low frequency oscillations of the Adhesive roller angular velocity which are the consequence of a pendular instability of the roller submitted to the peeling force. The stick-slip dynamics is shown to become intermittent due to these slow pendular oscillations which produce a quasistatic oscillation of the peeling angle while keeping constant the peeling fracture velocity (averaged over each stick-slip cycle). The observed correlation between the mean peeling angle and the stick-slip amplitude questions the validity of the usually admitted independence with the peeling angle of the fracture energy of Adhesives.