Fracture Closure Empirical Model and Theoretical Damage Model of Rock under Compression.

Materials (Basel) · 2023 · PMC9864735 · PMID 36676326

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an increasing trendno p-value reported

Under the assumption that the rock axial stress–strain curve is continuous and differentiable, if a point P i ( ε i , σ i ) is taken on the curve OA and point P i is connected to origin O , the slope of OP i can be calculated by the coordinates of point P i , k = σ i / ε i , which shows an increasing trend with the increase in axial strain.

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