Acoustic Emission Characteristics and Failure Mechanism of Fractured Rock under Different Loading Rates

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Loading rate (m/s)</td><td class="align_center">0.005</td><td class="align_center">0.01</td><td class="align_center">0.05</td><td class="align_center">0.5</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Uniaxial compressive strength (MPa)</td><td class="align_center">68.50</td><td class="align_center">68.53</td><td class="align_center">68.70</td><td class="align_center">75.60</td></tr><tr><td class="align_left">Peak strain (%)</td><td class="align_center">0.318</td><td class="align_center">0.320</td><td class="align_center">0.323</td><td class="align_center">0.330</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Numerical results of the uniaxial compression test under different loading rate conditions.

Shock and Vibration

tab3

Table 3

Table 3: Acoustic Emission Characteristics and Failure Mechanism of Fractured Rock under Different Loading Rates 