The effect of cracks interaction in orthotropic layered materials under compressive loading

B. Winiarski, I. A. Guz

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9 Citations (Scopus)

Abstract

The non-classical problem of fracture mechanics of composites compressed along the layers with interfacial cracks is analysed. The statement of the problem is based on the model of piecewise homogeneous medium, the most accurate within the framework of the mechanics of deformable bodies as applied to composites. The condition of plane strain state is examined. The layers are modelled by a transversally isotropic material ( a matrix reinforced by continuous parallel fibres). The frictionless Hertzian contact of the crack faces is considered. The complex fracture mechanics problem is solved using the finite-element analysis. The shear mode of stability loss is studied. The results are obtained for the typical dispositions of cracks. It was found that the interacting crack faces, the crack length and the mutual position of cracks influence the critical strain in the composite.

Original languageEnglish
Pages (from-to)1841-1847
Number of pages7
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical & Engineering Sciences
Volume366
Issue number1871
DOIs
Publication statusPublished - 28 May 2008

Keywords

  • fracture
  • buckling
  • interlaminar defects
  • surface and internal instability
  • interfacial cracks
  • composites
  • stability
  • bounds

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