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author：

Niu, Y. (Niu, Y..) [1] | Wang, J.-G. (Wang, J.-G..) [2] | Wang, X.-K. (Wang, X.-K..) [3] | Hu, Y.-J. (Hu, Y.-J..) [4] | Zhang, J.-Z. (Zhang, J.-Z..) [5] | Zhang, R.-R. (Zhang, R.-R..) [6] | Hu, Z.-J. (Hu, Z.-J..) [7]

Indexed by：

Scopus

Abstract：

The　numerical　approach　is　a　vital　means　for　evaluating　the　stability　of　flawed　rocks.　In　this　paper,　the　extended　non-ordinary　state-based　peridynamics　(NOSB-PD)　theory　is　employed　to　simulate　the　fracture　process　of　rocks　containing　two　pre-existing　flaws.　Two　stress　criteria,　including　the　maximum　tensile　stress　criterion　and　the　Mohr–Coulomb　criterion,　are　implemented　into　the　NOSB-PD　numerical　method　to　respectively　judge　the　tensile　and　shear　failure　of　rock　materials.　The　effects　of　inclination　angles　and　ligament　angles　on　the　crack　initiation　and　coalescence　modes　for　flawed　rocks　are　investigated　based　on　the　numerical　results.　The　numerical　results　are　in　good　agreement　with　the　previous　experimental　results.　The　fracture　mechanism　of　flawed　rocks　is　revealed　based　on　the　evolutionary　distribution　characteristics　of　the　maximum　principal　stress　field　and　shear　stress　field　obtained　by　the　extended　NOSB-PD　theory.　©　2023　John　Wiley　&　Sons　Ltd.

Keyword：

crack coalescence crack initiation failure criterion fracture behavior fracture mechanism numerical method

Community：

  • [ 1 ] [Niu, Y.]Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing University, Zhejiang, Shaoxing, China
  • [ 2 ] [Niu, Y.]School of Earth Science and Engineering, Hohai University, Jiangsu, Nanjing, China
  • [ 3 ] [Niu, Y.]Zijin School of Geology and Mining, Fuzhou University, Fuzhou, China
  • [ 4 ] [Wang, J.-G.]School of Earth Science and Engineering, Hohai University, Jiangsu, Nanjing, China
  • [ 5 ] [Wang, X.-K.]Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing University, Zhejiang, Shaoxing, China
  • [ 6 ] [Wang, X.-K.]State Key Laboratory of Coal Mining and Clean Utilization, Beijing, China
  • [ 7 ] [Hu, Y.-J.]Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing University, Zhejiang, Shaoxing, China
  • [ 8 ] [Zhang, J.-Z.]Zijin School of Geology and Mining, Fuzhou University, Fuzhou, China
  • [ 9 ] [Zhang, R.-R.]School of Ecology and Environment, Northwestern Polytechnical University, Shaanxi, Xi'an, China
  • [ 10 ] [Hu, Z.-J.]School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Zhejiang, Hangzhou, China

Reprint 's Address：

  • [Hu, Y.-J.]School of Environmental and Natural Resources, Zhejiang, China

Email：


yunjinhusxu@126.com
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Source ：

Fatigue and Fracture of Engineering Materials and Structures

ISSN： 8756-758X

Year： 2023

3 . 1

JCR@2023

3 . 1 0 0

JCR@2023

ESI HC Threshold：49

JCR Journal Grade：2

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 9

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

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