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Advances in Materials Research
  Volume 6, Number 4, December 2017, pages 317-328
DOI: http://dx.doi.org/10.12989/amr.2017.6.4.317
 

A high-order closed-form solution for interfacial stresses in externally sandwich FGM plated RC beams
Abdebasset Chedad, Tahar Hassaine Daouadji, Rabahi Abderezak, Adim Belkacem, Boussad Abbes, Benferhat Rabia and Fazilay Abbes

 
Abstract     [Full Text]
    In this paper, an improved theoretical solution for interfacial stress analysis is presented for simply supported concrete beam bonded with a sandwich FGM plate. Interfacial stress analysis is presented for simply supported concrete beam bonded with a sandwich plate. This improved solution is intended for application to beams made of all kinds of materials bonded with a thin plate, while all existing solutions have been developed focusing on the strengthening of reinforced concrete beams, which allowed the omission of certain terms. It is shown that both the normal and shear stresses at the interface are influenced by the material and geometry parameters of the composite beam. A numerical parametric study was performed for different simulated cases to assess the effect of several parameters. Numerical comparisons between the existing solutions and the present new solution enable a clear appreciation of the effects of various parameters. The results of this study indicated that the FGM sandwich panel strengthening systems are effective in enhancing flexural behavior of the strengthened RC beams.
 
Key Words
    RC beam; sandwich plate; interfacial stresses; strengthening; functionally graded material
 
Address
(1) Abdebasset Chedad, Tahar Hassaine Daouadji, Rabahi Abderezak, Benferhat Rabia:
Département de génie civil, Université Ibn Khaldoun Tiaret; BP 78 Zaaroura, Tiaret, Algérie;
(2) Abdebasset Chedad, Tahar Hassaine Daouadji, Rabahi Abderezak, Adim Belkacem, Benferhat Rabia:
Laboratoire de Géomatique et Développement Durable, Université de Tiaret, Algérie;
(3) Boussad Abbes, Fazilay Abbes:
Laboratoire GRESPI—Campus du Moulin de la Housse, Reims Cedex 2, France;
(4) Adim Belkacem:
Département des sciences et technologies, Centre Universitaire Tissemsilt, Algérie.
 

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