Study on the mechanical response mechanism and constitutive model of black sandstone under uniaxial cyclic loading-unloading with medium-high temperature cycles.

Sci Rep · 2026 · PMC13230815 · PMID 41965402

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an increasing trendno p-value reported

All experimental groups demonstrate the phenomenon that the elastic modulus increases during unloading and decreases during loading, and the overall elastic modulus also shows an increasing trend with the increase in the number of cyclic loading–unloading cycles.

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