Bond behaviour between hybrid fiber reinforced polymer sheets and concrete

© 2019 Elsevier Ltd Fiber reinforced polymer (FRP) have been widely used for strengthening and retrofitting the existing structures. Debonding has been identified as one of the most common failure modes of such composite structures. Numerous studies have been conducted to investigate the bond behavi...

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Main Authors: Yuan, C., Chen, Wensu, Pham, Thong, Hao, Hong
Format: Journal Article
Language:English
Published: ELSEVIER SCI LTD 2019
Subjects:
Online Access:http://purl.org/au-research/grants/arc/LP150100259
http://hdl.handle.net/20.500.11937/91673
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author Yuan, C.
Chen, Wensu
Pham, Thong
Hao, Hong
author_facet Yuan, C.
Chen, Wensu
Pham, Thong
Hao, Hong
author_sort Yuan, C.
building Curtin Institutional Repository
collection Online Access
description © 2019 Elsevier Ltd Fiber reinforced polymer (FRP) have been widely used for strengthening and retrofitting the existing structures. Debonding has been identified as one of the most common failure modes of such composite structures. Numerous studies have been conducted to investigate the bond behavior between FRP and concrete. Hybrid FRP, which is made of combinations of different types of fibers, has shown their excellent performance in strengthening structures. However, only limited studies have been conducted on the bond behaviour between hybrid FRPs and concrete. This study investigates the interfacial behaviour between hybrid FRP (carbon/basalt) and concrete blocks by using the single-lap shear testing method. The digital image correlation (2D-DIC) technique is used to measure the full fields of displacements and strain of the specimens. The effects of FRP stacking order and the mechanical properties of FRP on the bond behavior are evaluated. The experimental results show that the FRP stacking order has obvious influences on the debonding load and the bond-slip relationship. The effect of FRP stacking order on the fracture energy is also examined. The existing models are recalibrated with consideration of stiffness variations and the predictions of the modified models agree better with the experimental results.
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spelling curtin-20.500.11937-916732023-05-18T03:12:19Z Bond behaviour between hybrid fiber reinforced polymer sheets and concrete Yuan, C. Chen, Wensu Pham, Thong Hao, Hong Science & Technology Technology Construction & Building Technology Engineering, Civil Materials Science, Multidisciplinary Engineering Materials Science Basalt FRP (BFRP) Hybrid FRPs Concrete Bond slip relationship DIC FRP-TO-CONCRETE STRESS-SLIP MODEL STEEL PLATES SINGLE-LAP STRENGTH JOINTS LENGTH INTERFACES FRACTURE FAILURE © 2019 Elsevier Ltd Fiber reinforced polymer (FRP) have been widely used for strengthening and retrofitting the existing structures. Debonding has been identified as one of the most common failure modes of such composite structures. Numerous studies have been conducted to investigate the bond behavior between FRP and concrete. Hybrid FRP, which is made of combinations of different types of fibers, has shown their excellent performance in strengthening structures. However, only limited studies have been conducted on the bond behaviour between hybrid FRPs and concrete. This study investigates the interfacial behaviour between hybrid FRP (carbon/basalt) and concrete blocks by using the single-lap shear testing method. The digital image correlation (2D-DIC) technique is used to measure the full fields of displacements and strain of the specimens. The effects of FRP stacking order and the mechanical properties of FRP on the bond behavior are evaluated. The experimental results show that the FRP stacking order has obvious influences on the debonding load and the bond-slip relationship. The effect of FRP stacking order on the fracture energy is also examined. The existing models are recalibrated with consideration of stiffness variations and the predictions of the modified models agree better with the experimental results. 2019 Journal Article http://hdl.handle.net/20.500.11937/91673 10.1016/j.conbuildmat.2019.03.082 English http://purl.org/au-research/grants/arc/LP150100259 ELSEVIER SCI LTD fulltext
spellingShingle Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Materials Science, Multidisciplinary
Engineering
Materials Science
Basalt FRP (BFRP)
Hybrid FRPs
Concrete
Bond slip relationship
DIC
FRP-TO-CONCRETE
STRESS-SLIP MODEL
STEEL PLATES
SINGLE-LAP
STRENGTH
JOINTS
LENGTH
INTERFACES
FRACTURE
FAILURE
Yuan, C.
Chen, Wensu
Pham, Thong
Hao, Hong
Bond behaviour between hybrid fiber reinforced polymer sheets and concrete
title Bond behaviour between hybrid fiber reinforced polymer sheets and concrete
title_full Bond behaviour between hybrid fiber reinforced polymer sheets and concrete
title_fullStr Bond behaviour between hybrid fiber reinforced polymer sheets and concrete
title_full_unstemmed Bond behaviour between hybrid fiber reinforced polymer sheets and concrete
title_short Bond behaviour between hybrid fiber reinforced polymer sheets and concrete
title_sort bond behaviour between hybrid fiber reinforced polymer sheets and concrete
topic Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Materials Science, Multidisciplinary
Engineering
Materials Science
Basalt FRP (BFRP)
Hybrid FRPs
Concrete
Bond slip relationship
DIC
FRP-TO-CONCRETE
STRESS-SLIP MODEL
STEEL PLATES
SINGLE-LAP
STRENGTH
JOINTS
LENGTH
INTERFACES
FRACTURE
FAILURE
url http://purl.org/au-research/grants/arc/LP150100259
http://hdl.handle.net/20.500.11937/91673