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Mechanical model based on a BVP for FRPs applied on flat and curved masonry pillars with anchor spikes.

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Title: Mechanical model based on a BVP for FRPs applied on flat and curved masonry pillars with anchor spikes.
Authors: Bertolesi, Elisa1 (AUTHOR) elisa.bertolesi@brunel.ac.uk, Grande, Ernesto2 (AUTHOR), Fagone, Mario3 (AUTHOR), Milani, Gabriele4 (AUTHOR), Rotunno, Tommaso5 (AUTHOR)
Source: Composite Structures. Oct2021, Vol. 273, pN.PAG-N.PAG. 1p.
Subjects: Mechanical models, Masonry, Nonlinear boundary value problems, Boundary value problems
Abstract: • Interface model for bond behavior of FRP reinforced and anchored curved masonry. • BVP solution assuming for anchor a constitutive behavior from FE micro-modeling. • Excellent stability of the BVP solution in the inelastic and post peak range. • Very good capability to reproduce experimental data, both globally and locally. • Full agreement with previously presented 3D FEM and simplified spring models. The use of fiber reinforced polymer (FRP) materials for strengthening interventions of existing constructions is a consolidated and widespread technique. In this context, although strengthening interventions generally involve curved masonry elements (arches, vaults, domes, etc.), only a few studies specifically concern the influence of the geometry curvature, or the effect of mechanical anchors (widely used in current practice for preventing premature failures), on the bond behavior of FRPs. The present paper proposes an interface exponential model for simulating the bond behavior of curved masonry pillars reinforced with FRP strips applied at the intrados or extrados by both epoxy adhesive and anchor spikes. The proposed model is based on a relatively simple boundary value problem (BVP) obtained by assuming for the spike a constitutive behavior under shear forces quantitatively deduced by post-processing the numerical data from a finite element micro-modeling approach previously proposed by the authors. The application of the proposed model to experimental cases carried out by the authors underlines the stability of solution and the reliability of the proposed approach to account for the effect of both the curvature of the substrate and the presence of the spike anchor on the bond behavior of FRPs. [ABSTRACT FROM AUTHOR]
Copyright of Composite Structures is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 151758616
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
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  Data: Mechanical model based on a BVP for FRPs applied on flat and curved masonry pillars with anchor spikes.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Bertolesi%2C+Elisa%22">Bertolesi, Elisa</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> elisa.bertolesi@brunel.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Grande%2C+Ernesto%22">Grande, Ernesto</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fagone%2C+Mario%22">Fagone, Mario</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Milani%2C+Gabriele%22">Milani, Gabriele</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rotunno%2C+Tommaso%22">Rotunno, Tommaso</searchLink><relatesTo>5</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Composite+Structures%22">Composite Structures</searchLink>. Oct2021, Vol. 273, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Mechanical+models%22">Mechanical models</searchLink><br /><searchLink fieldCode="DE" term="%22Masonry%22">Masonry</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+boundary+value+problems%22">Nonlinear boundary value problems</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+value+problems%22">Boundary value problems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Interface model for bond behavior of FRP reinforced and anchored curved masonry. • BVP solution assuming for anchor a constitutive behavior from FE micro-modeling. • Excellent stability of the BVP solution in the inelastic and post peak range. • Very good capability to reproduce experimental data, both globally and locally. • Full agreement with previously presented 3D FEM and simplified spring models. The use of fiber reinforced polymer (FRP) materials for strengthening interventions of existing constructions is a consolidated and widespread technique. In this context, although strengthening interventions generally involve curved masonry elements (arches, vaults, domes, etc.), only a few studies specifically concern the influence of the geometry curvature, or the effect of mechanical anchors (widely used in current practice for preventing premature failures), on the bond behavior of FRPs. The present paper proposes an interface exponential model for simulating the bond behavior of curved masonry pillars reinforced with FRP strips applied at the intrados or extrados by both epoxy adhesive and anchor spikes. The proposed model is based on a relatively simple boundary value problem (BVP) obtained by assuming for the spike a constitutive behavior under shear forces quantitatively deduced by post-processing the numerical data from a finite element micro-modeling approach previously proposed by the authors. The application of the proposed model to experimental cases carried out by the authors underlines the stability of solution and the reliability of the proposed approach to account for the effect of both the curvature of the substrate and the presence of the spike anchor on the bond behavior of FRPs. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Composite Structures is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.compstruct.2021.114251
    Languages:
      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Mechanical models
        Type: general
      – SubjectFull: Masonry
        Type: general
      – SubjectFull: Nonlinear boundary value problems
        Type: general
      – SubjectFull: Boundary value problems
        Type: general
    Titles:
      – TitleFull: Mechanical model based on a BVP for FRPs applied on flat and curved masonry pillars with anchor spikes.
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          Name:
            NameFull: Bertolesi, Elisa
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            NameFull: Grande, Ernesto
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            NameFull: Fagone, Mario
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            NameFull: Milani, Gabriele
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            NameFull: Rotunno, Tommaso
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          Dates:
            – D: 01
              M: 10
              Text: Oct2021
              Type: published
              Y: 2021
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              Value: 273
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            – TitleFull: Composite Structures
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