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Modelling of crack path in layered architectures composed of dissimilar materials
  • +2
  • Songsong Lu,
  • Binchao Liu,
  • Philippa Reed,
  • Richard Cook,
  • Yi Zhang
Songsong Lu
Beihang University

Corresponding Author:[email protected]

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Binchao Liu
Beihang University
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Philippa Reed
University of Southampton
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Richard Cook
University of Southampton
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Yi Zhang
Daido Metal Co Ltd European Technical Centre (UK) Winterhay Lane Ilminister TA19 9PH UK
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In order to make full use of the potential fatigue crack growth resistance provided by layered architectures, a validated crack path simulation algorithm for crack propagation through different elements of the layered architectures was established. The crack path approaching a material interface was predicted by using the maximum tangential strain (MTSN) criterion and the crack behaviour at the interface was simulated by a developed two-step method (a modified stress-and-energy-based cohesive zone method considering the change in direction of an interface penetrating crack). The crack path simulation by using this algorithm in layered example architectures indicates: 1) there are two criteria zones for the transition between crack deflection and penetration in terms of the relationship between interfacial strength and toughness; 2) the likelihood of a crack deflecting out of the interface will increase with the propagation of an interfacial crack and 3) the architecture difference which affects shielding or anti-shielding behaviour has a significant effect on crack deflection or penetration events.
05 Apr 2022Submitted to Fatigue & Fracture of Engineering Materials & Structures
05 Apr 2022Submission Checks Completed
05 Apr 2022Assigned to Editor
06 Apr 2022Reviewer(s) Assigned
10 Apr 2022Review(s) Completed, Editorial Evaluation Pending
01 May 2022Editorial Decision: Revise Minor
03 May 20221st Revision Received
03 May 2022Submission Checks Completed
03 May 2022Assigned to Editor
03 May 2022Reviewer(s) Assigned
03 May 2022Review(s) Completed, Editorial Evaluation Pending
07 May 2022Editorial Decision: Accept