Research on Microscopic Evolution Laws of Sandstone Deformation and Failure Based on the Particle Discrete Element Method

<div>The evolution process of deformation and microcrack under the loading path (confining pressure is 5 MPa). (a) PFC3D numerical simulation results for natural sandstone (confining pressure is 5 MPa). (b) Failure patterns of specimens of sandstone and PFC3D numerical simulation.</div>

Mathematical Problems in Engineering

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Figure 8

Figure 8: Research on Microscopic Evolution Laws of Sandstone Deformation and Failure Based on the Particle Discrete Element Method 