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Anticipating the induced delamination formation in composite laminates subjected to bending loads
  • Mohammad Bahrami,
  • Mohsen Malakouti,
  • Amin Farrokhabadi
Mohammad Bahrami
Tarbiat Modares University
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Mohsen Malakouti
Tarbiat Modares University
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Amin Farrokhabadi
Tarbiat Modares University
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Abstract

In this research, the effects of induced delamination on the variation of the mechanical properties of composite laminates subjected to bending loads are investigated using a micromechanical model. For this purpose, the variation of the mechanical properties of delaminated laminates is determined using stress analysis of damaged ply and classical laminate theory (CLT) relationships. Using the proposed model and CLT, the fracture toughness due to induced delamination formation is presented in cross-ply laminates. Subsequently, the variation of strain energy release rate (SERR) is calculated in terms of crack density using analytical and finite element models to detect dominant failure modes in different crack densities. The results are compared with those of matrix cracking propagation. The results obtained by the proposed analytical model are in good agreement with those obtained by existing numerical and experimental approaches. The proposed model can be utilized to predict induced delamination formation in composite laminates subjected to bending loads.

Peer review status:IN REVISION

07 Apr 2021Submitted to Fatigue & Fracture of Engineering Materials & Structures
08 Apr 2021Assigned to Editor
08 Apr 2021Submission Checks Completed
10 Apr 2021Reviewer(s) Assigned
01 Jun 2021Review(s) Completed, Editorial Evaluation Pending
02 Jun 2021Editorial Decision: Revise Minor