Friction involves a complex set of phenomena spanning a large range of length scales, but experiments assessing the evolution of the slip-front between two dry sliding bodies now reveal that slip can be reasonably well described by linear fracture mechanics theory.
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Carpick, R., Bennewitz, R. Let it slip. Nature Phys 10, 410–411 (2014). https://doi.org/10.1038/nphys2985
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DOI: https://doi.org/10.1038/nphys2985
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