Imaging the stick-slip peeling of an adhesive tape under a constant load

Details Imaging the stick-slip peeling of an adhesive tape under a constant load Imaging the stick-slip peeling of an adhesive tape under a constant load

2007-06-25

arxiv.org/abs/0706.3564v1

Journal of Statistical Mechanics: Theory and Experiment 03, March 2007 (05/03/2007) P03005

Physics

Condensed Matter

Materials Science

Scientific paper

10.1088/1742-5468/2007/03/P03005

Using a high speed camera, we study the peeling dynamics of an adhesive tape under a constant load with a special focus on the so-called stick-slip regime of the peeling. It is the first time that the very fast motion of the peeling point is imaged. The speed of the camera, up to 16000 fps, allows us to observe and quantify the details of the peeling point motion during the stick and slip phases: stick and slip velocities, durations and amplitudes. First, in contrast with previous observations, the stick-slip regime appears to be only transient in the force controlled peeling. Additionally, we discover that the stick and slip phases have similar durations and that at high mean peeling velocity, the slip phase actually lasts longer than the stick phase. Depending on the mean peeling velocity, we also observe that the velocity change between stick and slip phase ranges from a rather sudden to a smooth transition. These new observations can help to discriminate between the various assumptions used in theoretical models for describing the complex peeling of an adhesive tape. The present imaging technique opens the door for an extensive study of the velocity controlled stick-slip peeling of an adhesive tape that will allow to understand the statistical complexity of the stick-slip in a stationary case.

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