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

<div>Elastic modulus-strain curves during cyclic loading-unloading.</div>

Advances in Materials Science and Engineering

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Figure 7

Figure 7: Research on Characteristic Stress and Constitutive Equation of Confined Sandstone during Damage Evolution Based on Energy Evolution Analysis 

Figure 7 | Research on Characteristic Stress and Constitutive Equation of Confined Sandstone during Damage Evolution Based on Energy Evolution Analysis 