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Influence of micromechanical models on the bending response of bidirectional FG beams under linear, uniform, exponential and sinusoidal distributed loading

  • Meksi, Abdeljalil (Department of Civil engineering, Faculty of architecture and civil engineering, University of sciences and technology Mohamed Boudiaf) ;
  • Benyoucef, Samir (Material and Hydrology Laboratory, University of SidiBel Abbes, Faculty of Technology) ;
  • Sekkal, Mohamed (Material and Hydrology Laboratory, University of SidiBel Abbes, Faculty of Technology) ;
  • Bouiadjra, Rabbab Bachir (Material and Hydrology Laboratory, University of SidiBel Abbes, Faculty of Technology) ;
  • Selim, Mahmoud M. (Department of Mathematics, Al-Aflaj College of Science and Humanities, Prince Sattam bin Abdulaziz University) ;
  • Tounsi, Abdelouahed (Material and Hydrology Laboratory, University of SidiBel Abbes, Faculty of Technology) ;
  • Hussain, Muzamal (Department of Mathematics, Govt. College University Faisalabad)
  • Received : 2021.01.14
  • Accepted : 2021.03.22
  • Published : 2021.04.25
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Abstract

This paper investigates the effect of micromechanical models on the bending behavior of bidirectional functionally graded (BDFG) beams subjected to different mechanical loading. The material properties of the beam are considered to be graded in both axial and thickness directions according to a power law. The beam's behavior is modeled by the mean of quasi 3D displacement field that contain undetermined integral terms and involves a reduced unknown functions. Navier's method is employed to determine and compute the displacements and stress for a simply supported beam. Different homogenization schemes such as Voigt, Reus, and Mori-Tanaka are employed to analyze the response of the BDFG beam subjected to linear, uniform, exponential and sinusoidal distributed loading. The results obtained by the present method are compared with available results in the literature and a good agreement was found. Several numerical results are presented in tabular form and in figures to examine the effects of the material gradation, micromechanical models and types of loading on the bending response of BDFG beams. It can be concluded that the present theory is not only accurate but also simple in predicting the bending response of BDFG beam subjected to different static loads.

Keywords

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