Influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface

Feng Chen An; Fei Yang Zhang; Chuan Chuan Hou

doi:10.1016/j.conbuildmat.2020.120572

Influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface

Feng Chen An
, Fei Yang Zhang
, Chuan Chuan Hou^*

^*Corresponding author for this work

School of Transportation Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

This paper presents a numerical study on the influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface. A verified predictive finite element (FE) model is employed to carry out a parametric study on the influence of compressive strength and compressive fracture energy, and tensile strength and tensile fracture energy. Results show that for different failure modes of the FRP-to-concrete interface, their ultimate strengths are determined by different properties of concrete. For the debonding failure in concrete (DBC) mode, the ultimate strength is mainly determined by the compressive fracture energy, while the tensile fracture energy has a moderate influence. For the concrete prism failure (CPF) mode, the ultimate strength is mainly determined by the tensile fracture energy, while the compressive fracture energy has very little effect. Lastly, the failure mechanisms are analysed for the two failure modes.

Original language	English
Article number	120572
Journal	Construction and Building Materials
Volume	264
DOIs	https://doi.org/10.1016/j.conbuildmat.2020.120572
State	Published - 20 Dec 2020

Keywords

Compressive fracture energy
FRF-to-concrete interface
Failure behaviour
Finite element (FE) model
Tensile fracture energy

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10.1016/j.conbuildmat.2020.120572

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@article{6b13fc0179914410ad4e4ab58c25508b,

title = "Influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface",

abstract = "This paper presents a numerical study on the influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface. A verified predictive finite element (FE) model is employed to carry out a parametric study on the influence of compressive strength and compressive fracture energy, and tensile strength and tensile fracture energy. Results show that for different failure modes of the FRP-to-concrete interface, their ultimate strengths are determined by different properties of concrete. For the debonding failure in concrete (DBC) mode, the ultimate strength is mainly determined by the compressive fracture energy, while the tensile fracture energy has a moderate influence. For the concrete prism failure (CPF) mode, the ultimate strength is mainly determined by the tensile fracture energy, while the compressive fracture energy has very little effect. Lastly, the failure mechanisms are analysed for the two failure modes.",

keywords = "Compressive fracture energy, FRF-to-concrete interface, Failure behaviour, Finite element (FE) model, Tensile fracture energy",

author = "An, \{Feng Chen\} and Zhang, \{Fei Yang\} and Hou, \{Chuan Chuan\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = dec,

day = "20",

doi = "10.1016/j.conbuildmat.2020.120572",

language = "英语",

volume = "264",

journal = "Construction and Building Materials",

issn = "0950-0618",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface

AU - An, Feng Chen

AU - Zhang, Fei Yang

AU - Hou, Chuan Chuan

PY - 2020/12/20

Y1 - 2020/12/20

N2 - This paper presents a numerical study on the influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface. A verified predictive finite element (FE) model is employed to carry out a parametric study on the influence of compressive strength and compressive fracture energy, and tensile strength and tensile fracture energy. Results show that for different failure modes of the FRP-to-concrete interface, their ultimate strengths are determined by different properties of concrete. For the debonding failure in concrete (DBC) mode, the ultimate strength is mainly determined by the compressive fracture energy, while the tensile fracture energy has a moderate influence. For the concrete prism failure (CPF) mode, the ultimate strength is mainly determined by the tensile fracture energy, while the compressive fracture energy has very little effect. Lastly, the failure mechanisms are analysed for the two failure modes.

AB - This paper presents a numerical study on the influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface. A verified predictive finite element (FE) model is employed to carry out a parametric study on the influence of compressive strength and compressive fracture energy, and tensile strength and tensile fracture energy. Results show that for different failure modes of the FRP-to-concrete interface, their ultimate strengths are determined by different properties of concrete. For the debonding failure in concrete (DBC) mode, the ultimate strength is mainly determined by the compressive fracture energy, while the tensile fracture energy has a moderate influence. For the concrete prism failure (CPF) mode, the ultimate strength is mainly determined by the tensile fracture energy, while the compressive fracture energy has very little effect. Lastly, the failure mechanisms are analysed for the two failure modes.

KW - Compressive fracture energy

KW - FRF-to-concrete interface

KW - Failure behaviour

KW - Finite element (FE) model

KW - Tensile fracture energy

UR - https://www.scopus.com/pages/publications/85090327516

U2 - 10.1016/j.conbuildmat.2020.120572

DO - 10.1016/j.conbuildmat.2020.120572

M3 - 文章

AN - SCOPUS:85090327516

SN - 0950-0618

VL - 264

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 120572

ER -

Influence of mechanical properties of concrete on the failure behaviour of FRP-to-concrete interface

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Keywords

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