Structural Engineering and Mechanics

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Evaluation of energy release rate of composites laminated with finite element method

  • Achache, Habib (Laboratory of Mechanical and Physical of Materials (LMPM), University Djillali Liabes of Sidi Bel Abbes) ;
  • Boutabout, Benali (Laboratory of Mechanical and Physical of Materials (LMPM), University Djillali Liabes of Sidi Bel Abbes) ;
  • Benzerdjeb, Abdelouahab (University of Science and Technology Oran Mohammed Boudiaf (USTO)) ;
  • Ouinas, Djamel (Laboratory of Numerical and experimental modeling of mechanical phenomena, University of Mostaganem)
  • Received : 2014.08.04
  • Accepted : 2015.06.09
  • Published : 2015.07.10
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Abstract

Control of the mechanical behavior of composite materials and structures under monotonic and dynamic loads for cracks and damage is a vast and complex area of research. The modeling of the different physical phenomena and behavior characteristics of a composite material during deformation play an important role in the structural design. Our study aims to analyze numerically the energy release rate parameter G of a composite laminated plate (glass or boron / epoxy) cross-ply [$+{\alpha}$, $-{\alpha}$] in the presence of a crack between two circular notches under the effect of several parameters such as fiber orientation ${\alpha}$, the crack orientation ${\beta}$, the orientation ${\gamma}$ of the two considered circular notches and the effect of mechanical properties. Our results show clearly that both notches orientation has more effect on G than the cracks and fibers orientations.

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References

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