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A platform for research: civil engineering, architecture and urbanism
Effect of mixed adhesive joints and tapered plate on stresses in retrofitted beams bonded with a fiber-reinforced polymer plate
Highlights Interface stress distribution in beams reinforced composites jointed by homogeneous adhesive. The reduction of stresses interfaces by using the tapered plate at edges. The reduction of stresses interfaces by using the bi-adhesive. The reduction of stresses interfaces by combining between the tapered plate and the bi-adhesive.
Abstract This paper focuses on the reduction of interfacial stresses when using bonded laminates in strengthening existing structures. The presence of high interfacial stresses that develop near the end of composite known as edge effect may compromise the résistance to failure of strengthened structure. It is known that the decrease of plate thickness and fitness of adhesive (Young modulus) reduces the stress concentration at plate ends. Another way to tackle the problem is proper design of the plate end shape (tapered plate) and using mixed adhesive joints (MAJs) between the adherents. In this paper, a comprehensive finite element (FE) study has been conducted to investigate the effect of mixed adhesive joints (MAJs) and tapering plate on the interfacial stress distribution in the adhesive layer in retrofitted steel beam with fiber reinforced polymer (FRP) plate, This results indicate that using the correct combination of tapering plate at the end and mixed adhesive joints can reduce the magnitude of the interfacial stresses significantly.
Effect of mixed adhesive joints and tapered plate on stresses in retrofitted beams bonded with a fiber-reinforced polymer plate
Highlights Interface stress distribution in beams reinforced composites jointed by homogeneous adhesive. The reduction of stresses interfaces by using the tapered plate at edges. The reduction of stresses interfaces by using the bi-adhesive. The reduction of stresses interfaces by combining between the tapered plate and the bi-adhesive.
Abstract This paper focuses on the reduction of interfacial stresses when using bonded laminates in strengthening existing structures. The presence of high interfacial stresses that develop near the end of composite known as edge effect may compromise the résistance to failure of strengthened structure. It is known that the decrease of plate thickness and fitness of adhesive (Young modulus) reduces the stress concentration at plate ends. Another way to tackle the problem is proper design of the plate end shape (tapered plate) and using mixed adhesive joints (MAJs) between the adherents. In this paper, a comprehensive finite element (FE) study has been conducted to investigate the effect of mixed adhesive joints (MAJs) and tapering plate on the interfacial stress distribution in the adhesive layer in retrofitted steel beam with fiber reinforced polymer (FRP) plate, This results indicate that using the correct combination of tapering plate at the end and mixed adhesive joints can reduce the magnitude of the interfacial stresses significantly.
Effect of mixed adhesive joints and tapered plate on stresses in retrofitted beams bonded with a fiber-reinforced polymer plate
Bouchikhi, A.S. (author) / Megueni, A. (author) / Gouasmi, S. (author) / Boukoulda, F.B. (author)
2013-03-15
12 pages
Article (Journal)
Electronic Resource
English
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