Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates |
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| Authors: | Vlad Lupă ș teanu,Dragoș Ungureanu,Nicolae Ț ă ranu,Dorina Nicolina Isopescu,Radu Lupă ș teanu,Petru Mihai |
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| Affiliation: | 1.Faculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, Romania; (V.L.); (N.Ț.); (D.N.I.); (R.L.); (P.M.);2.The Academy of Romanian Scientists, 54 Splaiul Independentei, Sector 5, 050094 Bucuresti, Romania |
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| Abstract: | This paper presents the outcomes of an experimental and numerical study performed on epoxy-bonded single lap joints (SLJs) between carbon fiber-reinforced polymer (CFRP) composite strips and steel elements. For the experimental program, 34 specimens were prepared by varying the type of the composite strip and the type of adhesives and their thicknesses; all specimens were loaded in axial tension up to failure. The specific failure mechanisms were identified and commented on the basis of the performed tests, and the load–displacement curves were plotted. Additionally, the strain distributions along the bond lengths at different load stages, the shear stress–displacements (slip) variations and the stress–strain distributions for the CFRP strips were plotted and investigated. The numerical simulations, based on 3D finite element method (FEM) analysis, provided consistent results, in good agreement with the experimental ones for all parameters that were investigated and discussed in this paper. |
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| Keywords: | polymer– matrix composites, bonded joints, epoxy adhesives, finite element analysis (FEA) |
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