Research on Characteristic Stress and Constitutive Equation of Confined Sandstone during Damage Evolution Based on Energy Evolution Analysis

<div>Energy evolution curves during the cyclic loading-unloading triaxial compression tests with confining pressures of 5 MPa (a), 10 MPa (b), 20 MPa (c), and 30 MPa (d).</div>

Advances in Materials Science and Engineering

fig6

Figure 6

Figure 6: Research on Characteristic Stress and Constitutive Equation of Confined Sandstone during Damage Evolution Based on Energy Evolution Analysis 

Figure 6 | Research on Characteristic Stress and Constitutive Equation of Confined Sandstone during Damage Evolution Based on Energy Evolution Analysis 