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Structural Engineering and Mechanics
  Volume 55, Number 1, July10 2015 , pages 191-204

Evaluation of energy release rate of composites laminated with finite element method
Habib Achache, Benali Boutabout, Abdelouahab Benzerdjeb and Djamel Ouinas

    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 [+a, −a] in the presence of a crack between two circular notches under the effect of several parameters such as fiber orientation a, the crack orientation B, the orientation y 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.
Key Words
    cracks; rate of energy restitution; fibers orientations; finite element method and laminates
Habib Achache and Benali Boutabout: Laboratory of Mechanical and Physical of Materials (LMPM), University Djillali Liabes of Sidi Bel Abbes, BP 89, Street Ben M\'Hidi, Sidi Bel Abbes, Algeria
Abdelouahab Benzerdjeb: University of Science and Technology Oran Mohammed Boudiaf (USTO), BP1505 El Menaouar, 31036 Oran, Algeria
Djamel Ouinas: Laboratory of Numerical and experimental modeling of mechanical phenomena, University of Mostaganem, Route Belahcel 27000 Mostaganem, Algeria

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