Numerical analysis of bond behavior between masonry bricks and composite materials

► A review of shear bond tests performed on FRP strengthened bricks is presented. ► The experimental results are simulated numerically by using interface elements. ► A tri-linear bond–slip model is proposed for FRP–masonry systems. ► Comparison is made between the proposed bond–slip model and availa...

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Bibliographic Details
Published in:Engineering structures 2012-10, Vol.43, p.210-220
Main Authors: Ghiassi, Bahman, Marcari, Giancarlo, Oliveira, Daniel V., Lourenço, Paulo B.
Format: Article
Language:English
Subjects:
Applied sciences
Bond
Bonding
Bonding strength
Bricks
Building structure
Buildings. Public works
Composite materials
Computation methods. Tables. Charts
Computer simulation
Construction (buildings and works)
Durability. Pathology. Repairing. Maintenance
Exact sciences and technology
FE analysis
Fiber reinforced plastics
Indexing in process
Interface elements
Masonry
Masonry structure
Materials
Mathematical models
Plastics
Repair (reinforcement, strenthening)
Strengthening
Structural analysis. Stresses
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Summary:► A review of shear bond tests performed on FRP strengthened bricks is presented. ► The experimental results are simulated numerically by using interface elements. ► A tri-linear bond–slip model is proposed for FRP–masonry systems. ► Comparison is made between the proposed bond–slip model and available guidelines. Fiber Reinforced Polymers have become a popular material for external strengthening of masonry structures. The performance of this strengthening technique is strongly dependent on the bond between FRP and substrate. This paper presents numerical modeling of the bond behavior in FRP-strengthened masonry components using interface elements, based on a recent testing program at the University of Minho. A trilinear bond–slip model is proposed for the interface elements based on observed experimental behavior of strengthened components. The comparison between numerical and experimental results shows that the proposed model is suitable for numerical simulation of the bond behavior and allows a better understanding of the mechanisms involved in the failure process.
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2012.05.022