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Experimental bond behaviour of GFRP and masonry bricks under impulsive loading

Pereira, João M. / Lourenço, Paulo B.

Abstract Fibre reinforced polymers (FRP) have become a popular material for strengthening of masonry structures. The performance of this technique is strongly dependent on the bond between the FRP and the substrate. Understanding the strain rate effect on these materials and strengthening techniques is important for proper design and proper modelling of these systems under impacts or blast loads. This work aims to study the behaviour of the bond between glass fibre reinforced polymer and brick at different strain rates. A drop weight impact machine specially developed for pull-off tests (single shear tests) is used with different masses and different heights introducing different deformation rates. The strain rate effect on the failure mode, shear capacity and effective bond length is determined from the experimental results. Empirical relations of dynamic increase factors for these materials and techniques are also presented.

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Experimental bond behaviour of GFRP and masonry bricks under impulsive loading

Pereira, João M. / Lourenço, Paulo B.

Abstract Fibre reinforced polymers (FRP) have become a popular material for strengthening of masonry structures. The performance of this technique is strongly dependent on the bond between the FRP and the substrate. Understanding the strain rate effect on these materials and strengthening techniques is important for proper design and proper modelling of these systems under impacts or blast loads. This work aims to study the behaviour of the bond between glass fibre reinforced polymer and brick at different strain rates. A drop weight impact machine specially developed for pull-off tests (single shear tests) is used with different masses and different heights introducing different deformation rates. The strain rate effect on the failure mode, shear capacity and effective bond length is determined from the experimental results. Empirical relations of dynamic increase factors for these materials and techniques are also presented.

Experimental bond behaviour of GFRP and masonry bricks under impulsive loading

Pereira, João M. / Lourenço, Paulo B.

Abstract Fibre reinforced polymers (FRP) have become a popular material for strengthening of masonry structures. The performance of this technique is strongly dependent on the bond between the FRP and the substrate. Understanding the strain rate effect on these materials and strengthening techniques is important for proper design and proper modelling of these systems under impacts or blast loads. This work aims to study the behaviour of the bond between glass fibre reinforced polymer and brick at different strain rates. A drop weight impact machine specially developed for pull-off tests (single shear tests) is used with different masses and different heights introducing different deformation rates. The strain rate effect on the failure mode, shear capacity and effective bond length is determined from the experimental results. Empirical relations of dynamic increase factors for these materials and techniques are also presented.

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Title:

Experimental bond behaviour of GFRP and masonry bricks under impulsive loading

Contributors:

Pereira, João M. (author) / Lourenço, Paulo B. (author)

Published in:

Materials and Structures ; 49 ; 4799-4811

Publication date:

2016-02-11

Size:

13 pages

ISSN:

1871-6873 , 1359-5997

DOI:

https://doi.org/10.1617/s11527-016-0826-4

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

GFRP , Masonry , Impact , Drop weight , Strain rate , DIF Engineering , Structural Mechanics , Materials Science, general , Theoretical and Applied Mechanics , Operating Procedures, Materials Treatment , Civil Engineering , Building Materials

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