FRP-Masonry Debonding: Numerical and Experimental Study of the Role of Mortar Joints

Carloni, C and K V L, Subramaniam (2012) FRP-Masonry Debonding: Numerical and Experimental Study of the Role of Mortar Joints. Journal of Composites for Construction, 16 (5). pp. 581-589. ISSN 1090-0268

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Fiber-reinforced polymers (FRP) composites are used as supplementary reinforcement to increase the in-plane shear capacity or to provide out-of-plane load-carrying capability of masonry walls and to modify the collapse mechanism in arches and vaults. In these applications, the efficiency of load transfer is limited by the debonding of FRP from the masonry substrate. In this paper, the debonding mechanism of FRP-masonry is experimentally studied. Experimental procedures and test specimens are designed to investigate the progressive debonding of FRP from brick and mortar substrates and relate it to the response obtained from the FRP-masonry interface. Surface displacements during debonding are obtained using digital image correlation. A one-dimensional numerical model is developed for predicting the fracture behavior along the FRP-masonry interface using the cohesive fracture parameters from the brick and mortar interfaces obtained from the computed strains.

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IITH Creators:
IITH CreatorsORCiD
K V L, Subramaniam
Item Type: Article
Uncontrolled Keywords: FRP, Masonry, Debonding, Mortar joints, Interface fracture, Cohesive material law, Mortar, Brick, Numerical analysis, Digital image correlation
Subjects: Civil Engineering > Structural engineering and underground construction
Divisions: Department of Civil Engineering
Depositing User: Users 3 not found.
Date Deposited: 19 Sep 2014 10:05
Last Modified: 05 Jul 2017 10:01
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