Crack Initiation, Propagation, and Coalescence Experiments in Sandstone Brazilian Disks Containing Pre-Existing Flaws

<div>Various crack types initiated from the pre-existing flaw identified in the present studies (T = tensile cracking opening; S = shearing displacement) [<a href="/journals/ace/2019/9816067/#B21">21</a>, <a href="/journals/ace/2019/9816067/#B22">22</a>]. (a–c) Tensile crack; (d) mixed tensile shear crack; (e–g) shear crack.</div>

Advances in Civil Engineering

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Figure 3

Figure 3: Crack Initiation, Propagation, and Coalescence Experiments in Sandstone Brazilian Disks Containing Pre-Existing Flaws 