Modeling the influence of anchor spikes on the bond behavior of FRCM applied to curved masonry substrates.
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| Title: | Modeling the influence of anchor spikes on the bond behavior of FRCM applied to curved masonry substrates. |
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| Authors: | Pingaro, Natalia1,2 (AUTHOR) natalia.pingaro@polimi.it, Milani, Gabriele1 (AUTHOR), Fagone, Mario3 (AUTHOR), Rotunno, Tommaso4 (AUTHOR), Grande, Ernesto5,6 (AUTHOR) |
| Source: | Composite Structures. Jun2026, Vol. 389, pN.PAG-N.PAG. 1p. |
| Subjects: | Cement composites, Fasteners, Adhesives, Computer simulation |
| Abstract: | A phenomenological numerical model for the prediction of the bond behavior of Fiber Reinforced Cementitious Matrix (FRCM) strengthened curved stack bond masonry prisms subjected to single lap shear tests, additionally equipped with spike anchors, is presented. The model lumps all non-linearity in a zero-thickness interface layer between reinforcement, assumed elastic, and curved substrate, supposed rigid. Furthermore, anchor spikes are modeled by means of a linear spring connecting the reinforcement layer located on the free edge side with that positioned between the spike and the loaded edge. A standard second-order non-linear differential equation is derived to describe the mechanical behavior. Numerically, the problem is tackled explicitly, making use of a standard Runge-Kutta in-house developed kernel where the boundary condition at the loaded edge is transferred to the free one. Comparisons with a wide experimental program carried out by the authors on laboratory-scaled curve masonry prisms assembled from stacked units and mortar layers, reinforced with FRCM and equipped with a central spike confirm the predictive capabilities of the simple model proposed, underscoring (i) the role played by curvature in modulating the post-peak response, with an enhanced relative energy dissipation gain in the presence of spike anchors despite an overall reduction with increasing curvature, and (ii) the very moderate effect in terms of peak strength improvement. This post-peak enhancement should therefore be interpreted as a conditional benefit associated with the presence of the spike anchor, contrasting the detrimental role played by curvature. [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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 194002824 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Modeling the influence of anchor spikes on the bond behavior of FRCM applied to curved masonry substrates. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pingaro%2C+Natalia%22">Pingaro, Natalia</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> natalia.pingaro@polimi.it</i><br /><searchLink fieldCode="AR" term="%22Milani%2C+Gabriele%22">Milani, Gabriele</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fagone%2C+Mario%22">Fagone, Mario</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rotunno%2C+Tommaso%22">Rotunno, Tommaso</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Grande%2C+Ernesto%22">Grande, Ernesto</searchLink><relatesTo>5,6</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Composite+Structures%22">Composite Structures</searchLink>. Jun2026, Vol. 389, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cement+composites%22">Cement composites</searchLink><br /><searchLink fieldCode="DE" term="%22Fasteners%22">Fasteners</searchLink><br /><searchLink fieldCode="DE" term="%22Adhesives%22">Adhesives</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A phenomenological numerical model for the prediction of the bond behavior of Fiber Reinforced Cementitious Matrix (FRCM) strengthened curved stack bond masonry prisms subjected to single lap shear tests, additionally equipped with spike anchors, is presented. The model lumps all non-linearity in a zero-thickness interface layer between reinforcement, assumed elastic, and curved substrate, supposed rigid. Furthermore, anchor spikes are modeled by means of a linear spring connecting the reinforcement layer located on the free edge side with that positioned between the spike and the loaded edge. A standard second-order non-linear differential equation is derived to describe the mechanical behavior. Numerically, the problem is tackled explicitly, making use of a standard Runge-Kutta in-house developed kernel where the boundary condition at the loaded edge is transferred to the free one. Comparisons with a wide experimental program carried out by the authors on laboratory-scaled curve masonry prisms assembled from stacked units and mortar layers, reinforced with FRCM and equipped with a central spike confirm the predictive capabilities of the simple model proposed, underscoring (i) the role played by curvature in modulating the post-peak response, with an enhanced relative energy dissipation gain in the presence of spike anchors despite an overall reduction with increasing curvature, and (ii) the very moderate effect in terms of peak strength improvement. This post-peak enhancement should therefore be interpreted as a conditional benefit associated with the presence of the spike anchor, contrasting the detrimental role played by curvature. [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.2026.120313 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Cement composites Type: general – SubjectFull: Fasteners Type: general – SubjectFull: Adhesives Type: general – SubjectFull: Computer simulation Type: general Titles: – TitleFull: Modeling the influence of anchor spikes on the bond behavior of FRCM applied to curved masonry substrates. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pingaro, Natalia – PersonEntity: Name: NameFull: Milani, Gabriele – PersonEntity: Name: NameFull: Fagone, Mario – PersonEntity: Name: NameFull: Rotunno, Tommaso – PersonEntity: Name: NameFull: Grande, Ernesto IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 02638223 Numbering: – Type: volume Value: 389 Titles: – TitleFull: Composite Structures Type: main |
| ResultId | 1 |
