Parallel Offset Crack Interactions in Rock under Unloading Conditions

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Specimen number</td><td class="align_center">Peak load (kN)</td><td class="align_center">Initiation load (kN)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">96.34</td><td class="align_center">85.17</td></tr><tr><td class="align_left">3</td><td class="align_center">100.94</td><td class="align_center">92.13</td></tr><tr><td class="align_left">4</td><td class="align_center">91.11</td><td class="align_center">83.52</td></tr><tr><td class="align_left">6</td><td class="align_center">114.38</td><td class="align_center">94.28</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Geometric parameters of cracks in specimens.</div>

Advances in Materials Science and Engineering

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Table 6

Table 6: Parallel Offset Crack Interactions in Rock under Unloading Conditions 