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July 10, 2026International Journal for Numerical and Analytical Methods in Geomechanics

Micro‐Macro Fracture Mechanism, Energy Evolution and Damage Constitutive Model of Rock‐Like Materials With Heterogeneous Parallel Double Flaws Under Triaxial Compression

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Authors

WJWei JingKXKun XiaYCYuhang Chen

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Overview

Randomized trial investigates how flaw geometry affects rock strength under compression, indicating implications for underground engineering stability.

Key Points

  • The study aims to understand how geometric variations in flaws influence the mechanical behavior of rock-like materials under stress.
  • Conducted triaxial compression tests on sandstone-like specimens with double parallel flaws.
  • Utilized Particle Flow Code (PFC2D) for numerical modeling and energy evolution analysis.
  • Developed a damage constitutive model incorporating microcrack events and flaw parameters.
  • Increased flaw spacing enhances specimen strength and integrity.
  • Larger primary flaw apertures decrease strength significantly.
  • Decreased secondary flaw apertures improve compressive strength but create complex crack networks, affecting microcrack activity.

Cite This Study

Jing et al. (2026) studied this question.

synapsesocial.com/papers/6a508ea56eeac72a437a16cdhttps://doi.org/10.1002/nag.70390
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Also Consider

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

  1. 1Experimental and Numerical Studies on Dynamic Response and Fracture Characteristic of Sandstone with Multiple Defects2026
  2. 2The influence of stress path and flaw morphology on the failure mechanism and mechanical properties of rock masses2026
  3. 3Analysis of Deformation–Fracture Evolution and Instability Precursor Characteristics of Rock-Like Models with a Single Pre-existing Flaw2026
  4. 4Investigation of the mechanical behavior of rock-like material with two flaws subjected to biaxial compression2024 · 53 citations
  5. 5Experimental study of the effect of crack distribution on the failure mechanism of sandstone specimens based on inclination angles and number of parallel flaws2024 · 11 citations