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July 23, 2026Scientific ReportsOpen Access

Damage evolution and microscopic failure characteristics of dense sandstone at different water contents

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Authors

CQChao QiAnhui University of Science and TechnologyJCJucai ChangAnhui University of Science and TechnologyZYZhiqiang YinAnhui University of Science and Technology

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Overview

Randomized trial shows mechanical degradation of dense sandstone under different water contents, indicating significant implications for rock stability.

Key Points

  • This research aims to investigate how varying water content affects the mechanical properties and failure mechanisms of dense sandstone.
  • Conducted uniaxial compression tests on sandstone samples with varying water contents.
  • Utilized acoustic emission monitoring and scanning electron microscopy for damage analysis.
  • Developed constitutive models of damage evolution in sandstone based on test outcomes.
  • With increasing water content, peak strain, compressive strength, and elastic modulus of sandstone decrease.
  • Damage threshold is lowered, causing earlier damage evolution with higher water content.
  • Failure mode shifts from shear to tensile failure, with increased proportion of tensile cracks as water content rises.

Cite This Study

Qi et al. (2026) studied this question.

synapsesocial.com/papers/6a61aea0faa9903c51169cfahttps://doi.org/10.1038/s41598-026-62946-w
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Influence of Pre-existing Flaws and Moisture Content on Damage Characteristics of Sandstone in Uniaxial Compression Experiments2026
  2. 2Mechanical properties and acoustic emission characteristics of soft rock with different water contents under dynamic disturbance2024 · 76 citations
  3. 3Mechanical Failure of Sandstone with Directional Heterogeneous Water Distribution Under Uniaxial Compression2026
  4. 4Evolution of Mechanical Behaviors, Consolidation and Failure Mechanisms in Sandstone Materials Under Compressive Stress: The Role of Chemical Remediation Cycles2026
  5. 5Mechanical Properties, Acoustic Emission (AE), and Electromagnetic Radiation (EMR) Characteristics of Sandstone with Different Water Contents Under Impact Loading2026