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Structural Engineering and Mechanics
  Volume 72, Number 3, November10 2019 , pages 293-304
DOI: https://doi.org/10.12989/sem.2019.72.3.293
 


Effect of porosity in interfacial stress analysis of perfect FGM beams reinforced with a porous functionally graded materials plate
Benferhat Rabia, Tahar Hassaine Daouadji and Rabahi Abderezak

 
Abstract
    In this paper, a general model is developed to predict the distribution of interfacial shear and normal stresses of FG beam reinforced by porous FGM plates under mechanical loading. The beam is assumed to be isotropic with a constant Poisson\'s ratio and power law elastic modulus through the beam thickness. Stress distributions, depending on an inhomogeneity constant, were calculated and presented in graphicals forms. 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, and it is shown that the inhomogeneities play an important role in the distribution of interfacial stresses. The results presented in the paper can serve as a benchmark for future analyses of functionally graded beams strengthened by imperfect varying properties plates. 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 imperfect functionally graded panel strengthening systems are effective in enhancing flexural behavior of the strengthened FGM beams. This research is helpful in understanding the mechanical behaviour of the interface and design of hybrid structures.
 
Key Words
    interfacial stresses; FG beam; strengthening imperfect plate; functionally graded material
 
Address
1Département de génie civil, Université Ibn Khaldoun Tiaret, BP 78 Zaaroura, Tiaret, Algérie
2Laboratoire de Géomatique et Développement Durable, Université de Tiaret, Algérie
 

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