Steel and Composite Structures

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Renovation of steel beams using by imperfect functionally graded materials plate

  • Daouadji, Tahar Hassaine (Laboratory of Geomatics and sustainable development, University of Tiaret) ;
  • Abderezak, Rabahi (Laboratory of Geomatics and sustainable development, University of Tiaret) ;
  • Rabia, Benferhat (Laboratory of Geomatics and sustainable development, University of Tiaret) ;
  • Tounsi, Abdelouahed (Laboratory of Geomatics and sustainable development, University of Tiaret)
  • Received : 2021.07.19
  • Accepted : 2021.11.16
  • Published : 2021.12.25
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Abstract

In this paper, a new approach of interface stress analysis in steel beam strengthened by porous FGM (Functionally Graded Materials) is presented to calculate the shear stress in the hybrid steel beam and loaded by a uniformly distributed load. The results show that there exists a high concentration of shear stress at the ends of the imperfect FGM, which might result in premature failure of the strengthening scheme at these locations. A parametric study has been conducted to investigate the sensitivity of interface behavior to parameters such as the rigidity of FGM plate (degree of homogeneity), the porosity index of FGM and the thickness of adhesive all were found to have a marked effect on the magnitude of maximum shear stress in the FGM member. we can conclude that the new approach is general in nature and may be applicable to all kinds of materials.

Keywords

Acknowledgement

This research was supported by the Algerian Ministry of Higher Education and Scientific Research (MESRS) as part of the grant for the PRFU research project n° A01L02UN140120200002 and by the University of Tiaret, in Algeria.

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