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Steel and Composite Structures
  Volume 29, Number 5, December10 2018 , pages 591-602
DOI: https://doi.org/10.12989/scs.2018.29.5.591
 


Thermal buckling resistance of simply supported FGM plates with parabolic-concave thickness variation
Fouad Benlahcen, Khalil Belakhdar, Mohammed Sellami and Abdelouahed Tounsi

 
Abstract
    This research presents an investigation on the thermal buckling resistance of FGM plates having parabolic-concave thickness variation exposed to uniform and gradient temperature change. An analytical formulation is derived and the governing differential equation of thermal stability is solved numerically using finite difference method. A specific function of thickness variation is introduced where it controls the parabolic variation intensity of the thickness without changing the original material volume. The results indicated that the loss ratio in buckling resistance is the same for any gradient temperature profile. Influencing geometrical and material parameters on the loss ratio in the thermal resistance buckling are investigated which may help in design guidelines of such complex structures.
 
Key Words
    FGM plate; thermal buckling; parabolic thickness variation; finite difference method
 
Address
(1) Fouad Benlahcen, Khalil Belakhdar, Mohammed Sellami:
Department of Science and Technology, University Centre of Tamanrasset, BP 10034 Sersouf, Tamanrasset, 11000, Algeria;
(2) Fouad Benlahcen:
Laboratory of Science and Environment, University Centre of Tamanrasset, BP 10034 Sersouf, Tamanrasset, 11000, Algeria;
(3) Khalil Belakhdar, Abdelouahed Tounsi:
Laboratory of Materials and Hydrology, University of Sidi Bel Abbes, BP 89 Citऻ Ben M'hidi, Sidi Bel Abbes, 22000, Algeria.
 

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