Numerical Simulation for Rock Fracture Viscoelastic Creep under Dry Conditions

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2020/8879890/figures/8879890.fig.0018a.svgz" name="8879890.fig.0018a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Mean aperture</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2020/8879890/figures/8879890.fig.0018b.svgz" name="8879890.fig.0018b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Contact ratio</td></tr></table>

<div>Creep deformation of the seven surface pairs (shown in Table <a href="../tab3/">3</a>). The time <svg height="8.02022pt" id="M355" style="vertical-align:-0.2063999pt" version="1.1" viewbox="-0.0498162 -7.81382 4.54925 8.02022" width="4.54925pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M324 430H196L233 583L223 592L145 529L120 430H54L29 396L31 388H111L56 126C33 15 54 -12 77 -12C137 -12 214 57 250 95L233 119C208 92 155 59 138 59C126 59 120 70 131 125L186 390L298 394L324 430Z"></path></g></svg> is normalized by <span class="nowrap"><svg height="6.1673pt" id="M356" style="vertical-align:-0.2063904pt" version="1.1" viewbox="-0.0498162 -5.96091 6.40217 6.1673" width="6.40217pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M471 456L444 459C426 433 414 430 388 430C324 430 270 434 216 434C103 434 51 374 23 338L43 317C96 366 146 380 221 375L154 109C149 86 147 68 147 52C147 4 168 -12 197 -12C240 -12 291 25 334 71L320 96C295 75 268 58 252 58C238 58 227 79 238 138C251 211 272 296 292 372C310 372 332 368 350 368C391 368 421 369 434 371C444 388 455 413 471 456Z"></path></g></svg>.</span> (a) Mean aperture changing with time for the seven surface pairs; (b) contact ratio changing with time for the seven surface pairs.</div>

Geofluids

fig18

Figure 18

Figure 18: Numerical Simulation for Rock Fracture Viscoelastic Creep under Dry Conditions 