Consultation > Par auteur > Tiberkak Rachid

Cracked Surface Prediction of Composite Plates Subjected to Low Velocity Impact
Rachid Tiberkak  1@  , Mourad Bachene  2@  , Said Rechak  3@  , Madjid Ezzraimi  1@  
1 : Laboratoire Structures, Département de Mécanique, Université Saad Dahleb, Blida1, Algérie(tiber_r@yahoo.fr)
BP 270 Route de Soumaa Blida Algérie -  Algérie
2 : Département de Mécanique, Université de Médéa 26000, Algérie
Département de Mécanique, Université de Médéa 26000, Algérie -  Algérie
3 : Laboratoire de Génie Mécanique et développement, Ecole Nationale Polytechnique, Alger, Algérie
10 avenue H. Badi BP 182 Harrach Alger -  Algérie

In this investigation, the fiber-reinforced composite plates subjected to low velocity impact are studied by the use of finite element analysis (FE). To predict matrix cracking, the dynamic stress analysis is carried out by the use of a constitutive equation of composite laminates without damage. The impact induces damage at higher impact velocity including matrix cracking is predicted by the appropriate failure criteria. The present results indicate that matrix cracking appears in the upper 90° plies with the dominance of transverse shear stress. The shape and dimensions of the cracked surfaces of different layers of a composite plate are numerically simulated. The cracked surface of the first layer increases in the time. At time, the cracked surfaces of the first two and last two layers are similar in the shape and dimensions. It is revealed also that at time elements located far from the contact point are also affected by cracking. These elements tend to disappear starting from the first layer at the last layer.

 


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