Steel and Composite Structures

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Effects of shrinkage in composite steel-concrete beam subjected to fire

  • Nacer Rahal (Department of Civil Engineering, Mustapha Stambouli university) ;
  • Abdelaziz Souici (Department of Civil Engineering, Mustapha Stambouli university) ;
  • Houda Beghdad (Department of Civil Engineering, Mustapha Stambouli university) ;
  • Mohamed Tehami (Department of Civil Engineering, University of Sciences and Technology) ;
  • Dris Djaffari (Department of Civil Engineering, University Ahmed Draia of Adrar, an Advanced Institute for Science and Technology) ;
  • Mohamed Sadoun (Department of Civil Engineering, Mustapha Stambouli university) ;
  • Khaled Benmahdi (Department of Civil Engineering, Mustapha Stambouli university)
  • Received : 2021.12.07
  • Accepted : 2023.10.16
  • Published : 2024.02.25
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Abstract

The network theory studies interconnection between discrete objects to find about the behavior of a collection of objects. Also, nanomaterials are a collection of discrete atoms interconnected together to perform a specific task of mechanical or/and electrical type. Therefore, it is reasonable to use the network theory in the study of behavior of super-molecule in nano-scale. In the current study, we aim to examine vibrational behavior of spherical nanostructured composite with different geometrical and materials properties. In this regard, a specific shear deformation displacement theory, classical elasticity theory and analytical solution to find the natural frequency of the spherical nano-composite structure. The analytical results are validated by comparison to finite element (FE). Further, a detail comprehensive results of frequency variations are presented in terms of different parameters. It is revealed that the current methodology provides accurate results in comparison to FE results. On the other hand, different geometrical and weight fraction have influential role in determining frequency of the structure.

Keywords

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