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September 23, 2025Fatigue & Fracture of Engineering Materials & Structures

Crack Evolution and Damage Mechanisms of Double‐Flawed Sandstone Monitored Under DIC and AE: The Influence of Rock Bridge Angle

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Authors

XXXingxing XieHWHaiyan WangWLWenpu Li

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Overview

Observational analysis finds crack paths change with rock bridge angle in sandstone, suggesting optimization can control energy release.

Key Points

  • Crack penetration length shortens as rock bridge dip angle increases, indicating a significant influence on damage evolution.
  • Under low rock bridge angles, tensile stress drives crack initiation mainly through mixed I/II modes, highlighting variable propagation mechanisms.
  • The study developed a mechanical criterion for mixed-mode propagation via stress intensity factor theory, optimizing existing classification standards.
  • Crack network configuration and energy release paths are regulated by the rock bridge angle, providing a basis for directional energy management.

Cite This Study

Xie et al. (2025) studied this question.

synapsesocial.com/papers/68d4725d31b076d99fa6b5dahttps://doi.org/10.1111/ffe.70091
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Also Consider

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

  1. 1Systematic detection and evaluation of cracking behavior of flawed brittle sandstones with AE and 3D-DIC techniques2024
  2. 2Study on the crack propagation mechanism of single cracks in red sandstone based on stress field evolution characteristics2026
  3. 3Microcrack monitoring and fracture evolution of coal and rock using integrated acoustic emission and digital image correlation techniques2024 · 23 citations
  4. 4Study on the influence of pore dip angle on acoustic emission characteristics of sandstone with composite defects2025
  5. 5Study on the influence of pore dip angle on acoustic emission characteristics of sandstone with composite defects2025