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Effect of Weak‐Filled Layer Properties on the Mechanical Response, Crack Evolution, and Failure Characteristics of Jointed Rock.

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Title: Effect of Weak‐Filled Layer Properties on the Mechanical Response, Crack Evolution, and Failure Characteristics of Jointed Rock.
Authors: Xue, Bowen1 (AUTHOR), Liu, Hanxiang1 (AUTHOR), Yan, Zhengtian1 (AUTHOR), Ding, Yuntao1 (AUTHOR), Zhang, Ziang1 (AUTHOR), Qin, Zhenghan1 (AUTHOR), Li, Heng1 (AUTHOR), Yuan, Yong1 (AUTHOR) cumt‐yuanyong@cumt.edu.cn, Li, Yong1 (AUTHOR) ly142431@163.com
Source: Fatigue & Fracture of Engineering Materials & Structures. May2026, Vol. 49 Issue 5, p1988-2004. 17p.
Subjects: Interfacial roughness, Crack propagation, Stone, Failure analysis, Computer simulation, Strains & stresses (Mechanics), Materials compression testing
Abstract: Uniaxial compression tests were performed on rock‐like specimens containing a weak‐filled layer (WFL) with a 45° inclination angle and varying joint roughness coefficients (JRC). The results show that increasing JRC causes a tendency to first rise and then decrease in peak stress and to progressively increase in failure strain. The increasing JRC causes the fracture mode transition from interface sliding to mixed tensile–shear failure. A three‐dimensional weak‐filled rough joint (WFRJ) rock‐like numerical model was developed to explore the coupled effects of JRC, filling thickness (T), and strength of WFL (λ) using the adaptive solid‐to‐DES method. A higher JRC induces the shift from interface sliding to matrix splitting, while thicker fillings require smaller JRC for the transition and promote broader crack propagation. For low and greater WFL strength, the failure is dominated by interface sliding and matrix splitting, respectively, which means that the higher WFL strength suppresses WFL failure but intensifies matrix damage. Summary: The transition law of weak‐filled layer's JRC on the failure mode was experimentally explored.The adaptive solid‐to‐DES method was used to realize the continuous–discontinuous fracture.The coupled effect of weak‐filled layer properties on mechanical behavior was obtained. [ABSTRACT FROM AUTHOR]
Copyright of Fatigue & Fracture of Engineering Materials & Structures is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 192816785
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Effect of Weak‐Filled Layer Properties on the Mechanical Response, Crack Evolution, and Failure Characteristics of Jointed Rock.
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  Data: <searchLink fieldCode="AR" term="%22Xue%2C+Bowen%22">Xue, Bowen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Hanxiang%22">Liu, Hanxiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yan%2C+Zhengtian%22">Yan, Zhengtian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ding%2C+Yuntao%22">Ding, Yuntao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ziang%22">Zhang, Ziang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Zhenghan%22">Qin, Zhenghan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Heng%22">Li, Heng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yuan%2C+Yong%22">Yuan, Yong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cumt‐yuanyong@cumt.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Yong%22">Li, Yong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ly142431@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Fatigue+%26+Fracture+of+Engineering+Materials+%26+Structures%22">Fatigue & Fracture of Engineering Materials & Structures</searchLink>. May2026, Vol. 49 Issue 5, p1988-2004. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Interfacial+roughness%22">Interfacial roughness</searchLink><br /><searchLink fieldCode="DE" term="%22Crack+propagation%22">Crack propagation</searchLink><br /><searchLink fieldCode="DE" term="%22Stone%22">Stone</searchLink><br /><searchLink fieldCode="DE" term="%22Failure+analysis%22">Failure analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Materials+compression+testing%22">Materials compression testing</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Uniaxial compression tests were performed on rock‐like specimens containing a weak‐filled layer (WFL) with a 45° inclination angle and varying joint roughness coefficients (JRC). The results show that increasing JRC causes a tendency to first rise and then decrease in peak stress and to progressively increase in failure strain. The increasing JRC causes the fracture mode transition from interface sliding to mixed tensile–shear failure. A three‐dimensional weak‐filled rough joint (WFRJ) rock‐like numerical model was developed to explore the coupled effects of JRC, filling thickness (T), and strength of WFL (λ) using the adaptive solid‐to‐DES method. A higher JRC induces the shift from interface sliding to matrix splitting, while thicker fillings require smaller JRC for the transition and promote broader crack propagation. For low and greater WFL strength, the failure is dominated by interface sliding and matrix splitting, respectively, which means that the higher WFL strength suppresses WFL failure but intensifies matrix damage. Summary: The transition law of weak‐filled layer's JRC on the failure mode was experimentally explored.The adaptive solid‐to‐DES method was used to realize the continuous–discontinuous fracture.The coupled effect of weak‐filled layer properties on mechanical behavior was obtained. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Fatigue & Fracture of Engineering Materials & Structures is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/ffe.70222
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        Text: English
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        PageCount: 17
        StartPage: 1988
    Subjects:
      – SubjectFull: Interfacial roughness
        Type: general
      – SubjectFull: Crack propagation
        Type: general
      – SubjectFull: Stone
        Type: general
      – SubjectFull: Failure analysis
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      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
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      – SubjectFull: Materials compression testing
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      – TitleFull: Effect of Weak‐Filled Layer Properties on the Mechanical Response, Crack Evolution, and Failure Characteristics of Jointed Rock.
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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