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RISS 인기검색어
- 검색키워드
- 저자 : Bensatallah Tayeb (검색결과 5 건)
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Bensatallah Tayeb,Tahar Hassaine Daouadji,Rabahi Abderezak,Abdelouahed Tounsi 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.41 No.3
In this paper, a composite beam element has been developed in this study, the composite steel-concrete beam strengthened with CFRP plate element can be used to model the nonlinear behavior of composite beams. The problem of slip and interfacial stresses in composite steel-concrete beam strengthened with CFRP plate is analyzed using linear elastic theory. The analysis is based on the deformation compatibility approach, where both the shear and normal stresses are assumed to be invariant across the adhesive layer thickness. The adopted model takes into account the adherend shear deformations by assuming a linear shear stress through the depth of the composite steel-concrete beam. This solution is intended for application to beams made of all kinds of materials bonded with a thin composite plate. For composite steel-concrete beam section, a geometrical coefficient is determined to show the effect of the adherend shear deformations. The theoretical predictions are compared with other existing solutions analytical and experimental which demonstrates the accuracy of the used element. Finally, numerical comparisons between the existing solutions and the present new solution enable a clear appreciation of the effects of various parameters. This research is helpful for the understanding on mechanical behaviour of the interface and design of such structures.
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Tayeb, Bensatallah,Daouadji, Tahar Hassaine Techno-Press 2020 Advances in materials research Vol.9 No.2
In this paper, an improved theoretical interfacial stress and slip analysis is presented for simply supported composite steel-concrete beam bonded with an adhesive. The adherend shear deformations have been included in the present theoretical analyses by assuming a linear shear stress through the thickness of the adherends, while all existing solutions neglect this effect. Remarkable effect of shear deformations of elements has been noted in the results. It is observed that large shear is concentrated and slip at the edges of the composite steel-concrete. Comparing with some experimental results from references, analytical advantage of this improvement is possible to determine the normal and shear stress to estimate exact prediction of normal and shear stress interfacial along span between concrete and steel beam. The exact prediction of these stresses will be very important to make an accurate analysis of the mode of fracture. It is shown that both the normal and shear stresses at the interface are influenced by the material and geometry parameters of the composite steel-concrete beam. This research is helpful for the understanding on mechanical behavior of the connection and design of such structures.
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Bensatallah Tayeb,Rabahi Abderezak,Tahar Hassaine Daouadji Techno-Press 2024 Coupled systems mechanics Vol.13 No.2
In this paper, an improved theoretical interfacial stress analysis is presented for simply supported composite aluminum- sandwich honeycomb beam strengthened by imperfect FGM plateusing linear elastic theory. The adherend shear deformations have been included in the present theoretical analyses by assuming a linear shear stress through the thickness of the adherends, while all existing solutions neglect this effect. Remarkable effect of shear deformations of adherends has been noted in the results.It is shown that both the sliding and the shear stress at the interface are influenced by the material and geometry parameters of the composite beam. This new solution is intended for applicationto composite beams made of all kinds of materials bonded with a thin plate. Finally, numerical comparisons between the existing solutions and the present new solution enable a clear appreciation of the effects of various parameters.
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Hassaine Daouadji Tahar,Bensatallah Tayeb,Rabahi Abderezak,Abdelouahed Tounsi 국제구조공학회 2021 Structural Engineering and Mechanics, An Int'l Jou Vol.78 No.3
The wood-concrete composite is an interesting solution in the field of Civil Engineering to create high performance bending elements for bridges, as well as in the building construction for the design of wood concrete floor systems. The authors of this paper has been working for the past few years on the development of the bonding process as applied to wood-concrete composite structures. Contrary to conventional joining connectors, this assembling technique does ensure an almost perfect connection between wood and concrete. This paper presents a careful theoretical investigation into interfacial stresses at the level of the two interfaces in composite wooden beam- reinforced concrete slab strengthened by external bonding of prestressed composite plate under a uniformly distributed load. The model is based on equilibrium and deformations compatibility requirements in all parts of the strengthened composite beam, i.e., the wooden beam, RC slab, the CFRP plate and the adhesive layer. The theoretical predictions are compared with other existing solutions. This research is helpful for the understanding on mechanical behaviour of the interface and design of the CFRP- wooden-concrete hybrid structures.
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Composite aluminum-slab RC beam bonded by a prestressed hybrid carbon-glass composite material
Rabahi Abderezak,Tahar Hassaine Daouadji,Bensatallah Tayeb 국제구조공학회 2023 Structural Engineering and Mechanics, An Int'l Jou Vol.85 No.5
This paper presents a careful theoretical investigation into interfacial stresses in composite aluminum-slab reinforced concrete beam bonded by a prestressed hybrid carbon-glass composite material. The model is based on equilibrium and deformations compatibility requirements in and all parts of the strengthened beam, i.e., the aluminum beam, the slab reinforced concrete, the hybrid carbon-glass composite plate and the adhesive layer. The theoretical predictions are compared with other existing solutions. Numerical results from the present analysis are presented both to demonstrate the advantages of the present solution over existing ones and to illustrate the main characteristics of interfacial stress distributions. It is shown that the stresses at the interface are influenced by the material and geometry parameters of the composite beam. This research is helpful for the understanding on mechanical behaviour of the interface and design of the hybrid structures.
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