Acoustic Emission Monitoring and Failure Precursors of Sandstone Samples under Various Loading and Unloading Paths

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/9760940/figures/9760940.fig.002a.svgz" name="9760940.fig.002a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Sandstone samples with AE sensors</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sv/volume-2017/9760940/figures/9760940.fig.002b.svgz" name="9760940.fig.002b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>AE PCI-II</td></tr></table>

<div>Sandstone samples in MTS 815 servo-controlled rock mechanics experimental system and AE PCI-II system.</div>

Shock and Vibration

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Figure 2

Figure 2: Acoustic Emission Monitoring and Failure Precursors of Sandstone Samples under Various Loading and Unloading Paths 