Renovation of steel beams using by imperfect functionally graded materials plate

Tahar Hassaine Daouadji , Rabahi Abderezak , Benferhat Rabia , Abdelouahed Tounsi

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.

Key Words

imperfect FGM plate; shear stress; steel beam; strengthening

Address

Tahar Hassaine Daouadji:Laboratory of Geomatics and sustainable development, University of Tiaret, Algeria/ Department of Civil Engineering, Ibn Khaldoun University of Tiaret, Algeria Rabahi Abderezak:Laboratory of Geomatics and sustainable development, University of Tiaret, Algeria/ Department of Civil Engineering, Ibn Khaldoun University of Tiaret, Algeria Benferhat Rabia:Laboratory of Geomatics and sustainable development, University of Tiaret, Algeria/ Department of Civil Engineering, Ibn Khaldoun University of Tiaret, Algeria Abdelouahed Tounsi:Laboratory of Geomatics and sustainable development, University of Tiaret, Algeria/Department of Civil Engineering, Ibn Khaldoun University of Tiaret, Algeria/ YFL (Yonsei Frontier Lab), Yonsei University, Seoul, Korea/ Material and Hydrology Laboratory, University of Sidi Bel Abbes, Civil Engineering Department, Algeria/ Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, 31261 Dhahran, Eastern Province, Saudi Arabia

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