Numerical Simulation of Strength, Deformation, and Failure Characteristics of Rock with Fissure Hole Defect

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameter</td><td class="align_center">Value</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Minimum particle diameter (mm)</td><td class="align_center">0.3</td></tr><tr><td class="align_left">Particle diameter ratio</td><td class="align_center">1.5</td></tr><tr><td class="align_left">Density (kg/m<sup>3</sup>)</td><td class="align_center">2490</td></tr><tr><td class="align_left">Contact modulus of the particle (GPa)</td><td class="align_center">3.19</td></tr><tr><td class="align_left">Contact bond gap (mm)</td><td class="align_center">0.05</td></tr><tr><td class="align_left">Porosity</td><td class="align_center">0.1</td></tr><tr><td class="align_left">Parallel bond friction angle (°)</td><td class="align_center">38</td></tr><tr><td class="align_left">Parallel bond tensile strength (MPa)</td><td class="align_center">22.3</td></tr><tr><td class="align_left">Normal critical damping ratio</td><td class="align_center">0.5</td></tr><tr><td class="align_left">Parallel bond cohesive force (MPa)</td><td class="align_center">33</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Mechanical parameters of sandstone model based on PFC.</div>

Advances in Materials Science and Engineering

tab3

Table 3

Table 3: Numerical Simulation of Strength, Deformation, and Failure Characteristics of Rock with Fissure Hole Defect 