Study on Nonlinear Damage Creep Model for Rocks under Cyclic Loading and Unloading

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Rock specimens</td><td class="align_center">Confining pressure (MPa)</td><td class="align_center">Compressive strength (MPa)</td><td class="align_center">Elastic modulus (GPa)</td><td class="align_center">Poisson's ratio</td><td class="align_center">Sticky cohesion (MPa)</td><td class="align_center">Internal friction angle (°)</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Lherzolite</td><td class="align_center">3</td><td class="align_center">78.63</td><td class="align_center">19.07</td><td class="align_center">0.227</td><td class="align_center">8.62</td><td class="align_center">52.64</td></tr><tr><td class="align_left">Limestone</td><td class="align_center">4</td><td class="align_center">59.20</td><td class="align_center">7.79</td><td class="align_center">0.251</td><td class="align_center">8.12</td><td class="align_center">35.10</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Basic parameters of the rock specimens.</div>

Advances in Materials Science and Engineering

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Table 1

Table 1: Study on Nonlinear Damage Creep Model for Rocks under Cyclic Loading and Unloading 