Journal
PHYSICAL REVIEW E
Volume 91, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.91.012408
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Funding
- US Army Research Office [W911NF-12-1-0012]
- NSF [CMMI 1234961, CMMI 1363524]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1234961] Funding Source: National Science Foundation
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We isolate single Schallamach waves-detachment fronts that mediate inhomogeneous sliding between an elastomer and a hard surface-to study their creation and dynamics. Based on measurements of surface displacement using high-speed in situ imaging, we establish a Burgers vector for the waves. The crystal dislocation analogs of nucleation stress, defect pinning, and configurational force are demonstrated. It is shown that many experimentally observed features can be quantitatively described using a conventional model of a dislocation line in an elastic medium. We also highlight the evolution of nucleation features, such as surface wrinkles, with consequences for interface delamination.
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