Mechanical Behaviors and AE Characteristics of Brittle Coal Specimens with Different Fissure Angles

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2022/4093526/figures/4093526.fig.004a.svgz" name="4093526.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Uniaxial compressive stress</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2022/4093526/figures/4093526.fig.004b.svgz" name="4093526.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Elastic modulus</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2022/4093526/figures/4093526.fig.004c.svgz" name="4093526.fig.004c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Peak strain</td></tr></table>

<div>Curves of the UCS, elastic modulus, and peak strain with respect to the fissure angle.</div>

Geofluids

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Figure 4

Figure 4: Mechanical Behaviors and AE Characteristics of Brittle Coal Specimens with Different Fissure Angles 