Numerical modeling of defective hybrid composite plates

Achour, et al.

International Journal of Advanced and Applied Sciences

Int. j. adv. appl. sci.

EISSN: 2313-3724

Print ISSN: 2313-626X

Volume 4, Issue 6 (June 2017), Pages: 43-49

Title: Numerical modeling of defective hybrid composite plates

Author(s): Belkacem Achour ^1,*, Djamel Ouinas ², Mabrouk Touahmia ¹, Mustapha Boukendakdji ¹

Affiliation(s):

¹Department of Civil Engineering, College of Engineering, University of Hail, Hail, Saudi Arabia
²Department of Mechanical Engineering, Université Abdelhamid Ibn Badis de Mostaganem, Mostaganem, Algeria

https://doi.org/10.21833/ijaas.2017.06.006

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Abstract:

It is known that the optimization of the positioning of reinforcements within a composite material is likely to increase significantly the performance of a structure. Accordingly, buckling is the most critical failure mode for notched and non-stiffened plates under axial compressive stress. In this study, the buckling response of laminated plates made of hybrid composite materials with and without elliptical notches is analyzed using finite element methods. The plates are made of carbon/epoxy/aluminum and arranged in following ordered manner [Al/ (θ/-θ) /Al]. The resistance to buckling of the hybrid plates under uniaxial compression is examined according to fiber orientations, the orientation of the notch and finally the thickness of the aluminum layer in the composite material. The results showed that when the fibers are at the amplification of the critical load of buckling in the hybrid notchless plate is of the order of 59% and 27.66% for a thickness of the aluminum layer t_Al= 0.2mm and 0.127mm respectively. The elliptical notch oriented at 0° reduces the maximum load four times more than when oriented at 90^o .

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords: Elliptical notch, Buckling, Hybrid composites, Finite element analysis

Article History: Received 11 February 2017, Received in revised form 11 April 2017, Accepted 2 May 2017

Digital Object Identifier:

https://doi.org/10.21833/ijaas.2017.06.006

Citation:

Achour B, Ouinas D, Touahmia M, and Boukendakdji M (2017). Numerical modeling of defective hybrid composite plates. International Journal of Advanced and Applied Sciences, 4(6): 43-49

http://www.science-gate.com/IJAAS/V4I6/Achour.html

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