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P. A. Johnson, B. Ferdowsi, B. M. Kaproth, M. Scuderi, M. Griffa, J. Carmeliet, R. A. Guyer, P-Y. Le Bas, D. T. Trugman and C. Marone Acoustic emission and microslip precursors to stick-slip failure in sheared granular material Geophysical Research Letters 40

Version of Record online: 4 NOV 2013 | DOI: 10.1002/2013GL057848

Key Points

  • Sheared granular media exhibits precursor events to stick-slip failure
  • Rate of precursor activity increases exponentially prior to stick-slip failure
  • Acoustic emission and microslip precursors are correlated in time

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