Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates

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...

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Main Authors: Vlad Lupășteanu, Dragoș Ungureanu, Nicolae Țăranu, Dorina Nicolina Isopescu, Radu Lupășteanu, Petru Mihai
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/21/6722
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author Vlad Lupășteanu
Dragoș Ungureanu
Nicolae Țăranu
Dorina Nicolina Isopescu
Radu Lupășteanu
Petru Mihai
author_facet Vlad Lupășteanu
Dragoș Ungureanu
Nicolae Țăranu
Dorina Nicolina Isopescu
Radu Lupășteanu
Petru Mihai
author_sort Vlad Lupășteanu
collection DOAJ
description 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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spelling doaj.art-123a619745184d3c94d6d0ecb71550402023-11-22T21:16:29ZengMDPI AGMaterials1996-19442021-11-011421672210.3390/ma14216722Structural Response of Bonded Joints between FRP Composite Strips and Steel PlatesVlad Lupășteanu0Dragoș Ungureanu1Nicolae Țăranu2Dorina Nicolina Isopescu3Radu Lupășteanu4Petru Mihai5Faculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, RomaniaFaculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, RomaniaFaculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, RomaniaFaculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, RomaniaFaculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, RomaniaFaculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iaşi, 43 Mangeron Blvd., 700050 Iaşi, RomaniaThis 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.https://www.mdpi.com/1996-1944/14/21/6722polymer–matrix compositesbonded jointsepoxy adhesivesfinite element analysis (FEA)
spellingShingle Vlad Lupășteanu
Dragoș Ungureanu
Nicolae Țăranu
Dorina Nicolina Isopescu
Radu Lupășteanu
Petru Mihai
Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates
Materials
polymer–matrix composites
bonded joints
epoxy adhesives
finite element analysis (FEA)
title Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates
title_full Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates
title_fullStr Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates
title_full_unstemmed Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates
title_short Structural Response of Bonded Joints between FRP Composite Strips and Steel Plates
title_sort structural response of bonded joints between frp composite strips and steel plates
topic polymer–matrix composites
bonded joints
epoxy adhesives
finite element analysis (FEA)
url https://www.mdpi.com/1996-1944/14/21/6722
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