Crack propagation prediction of CFRP retrofitted steel plates with different degrees of damage using BEM

Q. Q. Yu; X. L. Zhao; T. Chen; X. L. Gu; Z. G. Xiao

doi:10.1016/j.tws.2014.04.006

Crack propagation prediction of CFRP retrofitted steel plates with different degrees of damage using BEM

Q. Q. Yu, X. L. Zhao, T. Chen, X. L. Gu, Z. G. Xiao

Research output: Journal article publication › Journal article › Academic research › peer-review

45 Citations (Scopus)

Abstract

Although carbon fibre reinforced polymer (CFRP) materials have proven effective in strengthening steel structures especially when used to improve fatigue behaviour, further study is required to investigate their effectiveness when applied at different stages of crack propagation in steel elements. This paper presents a numerical study on CFRP retrofitted steel plates with different degrees of damage using the boundary element method (BEM). The numerical results compared well with the experimental data, which demonstrated that the BEM is reliable for crack propagation analysis of CFRP laminate retrofitted steel plates. Finally, a parametric analysis was conducted to investigate the influence of bond length, bond width, CFRP stiffness and adhesive shear modulus on stress intensity factor (SIF) values.

Original language	English
Pages (from-to)	145-158
Number of pages	14
Journal	Thin-Walled Structures
Volume	82
DOIs	https://doi.org/10.1016/j.tws.2014.04.006
Publication status	Published - Sept 2014
Externally published	Yes

Keywords

Boundary element method
CFRP laminate
Degree of damage
Fatigue
Steel plate
Stress intensity factor

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanical Engineering

More information

10.1016/j.tws.2014.04.006

Cite this

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title = "Crack propagation prediction of CFRP retrofitted steel plates with different degrees of damage using BEM",

abstract = "Although carbon fibre reinforced polymer (CFRP) materials have proven effective in strengthening steel structures especially when used to improve fatigue behaviour, further study is required to investigate their effectiveness when applied at different stages of crack propagation in steel elements. This paper presents a numerical study on CFRP retrofitted steel plates with different degrees of damage using the boundary element method (BEM). The numerical results compared well with the experimental data, which demonstrated that the BEM is reliable for crack propagation analysis of CFRP laminate retrofitted steel plates. Finally, a parametric analysis was conducted to investigate the influence of bond length, bond width, CFRP stiffness and adhesive shear modulus on stress intensity factor (SIF) values.",

keywords = "Boundary element method, CFRP laminate, Degree of damage, Fatigue, Steel plate, Stress intensity factor",

author = "Yu, {Q. Q.} and Zhao, {X. L.} and T. Chen and Gu, {X. L.} and Xiao, {Z. G.}",

note = "Funding Information: This project was supported by an ARC Discovery Grant ( DP120101708 ), National Key Basic Research Program of China (973 Program, 2012CB026200 ), National Natural Science Foundation of China ( 50808139 ), the Fundamental Research Funds for the Central Universities and Kwang-Hua Fund for College of Civil Engineering, Tongji University. Thanks are due to Dr. Sharon Mellings from Computational Mechanics BEASY Ltd. and Dr. Hongbo Liu from Monash University for their help in the numerical modelling. The first author wishes to thank the China Scholarship Council and Monash University for sponsoring her research at Monash University.",

year = "2014",

month = sep,

doi = "10.1016/j.tws.2014.04.006",

language = "English",

volume = "82",

pages = "145--158",

journal = "Thin-Walled Structures",

issn = "0263-8231",

publisher = "Elsevier Ltd",

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AU - Yu, Q. Q.

AU - Zhao, X. L.

AU - Chen, T.

AU - Gu, X. L.

AU - Xiao, Z. G.

N1 - Funding Information: This project was supported by an ARC Discovery Grant ( DP120101708 ), National Key Basic Research Program of China (973 Program, 2012CB026200 ), National Natural Science Foundation of China ( 50808139 ), the Fundamental Research Funds for the Central Universities and Kwang-Hua Fund for College of Civil Engineering, Tongji University. Thanks are due to Dr. Sharon Mellings from Computational Mechanics BEASY Ltd. and Dr. Hongbo Liu from Monash University for their help in the numerical modelling. The first author wishes to thank the China Scholarship Council and Monash University for sponsoring her research at Monash University.

PY - 2014/9

Y1 - 2014/9

N2 - Although carbon fibre reinforced polymer (CFRP) materials have proven effective in strengthening steel structures especially when used to improve fatigue behaviour, further study is required to investigate their effectiveness when applied at different stages of crack propagation in steel elements. This paper presents a numerical study on CFRP retrofitted steel plates with different degrees of damage using the boundary element method (BEM). The numerical results compared well with the experimental data, which demonstrated that the BEM is reliable for crack propagation analysis of CFRP laminate retrofitted steel plates. Finally, a parametric analysis was conducted to investigate the influence of bond length, bond width, CFRP stiffness and adhesive shear modulus on stress intensity factor (SIF) values.

AB - Although carbon fibre reinforced polymer (CFRP) materials have proven effective in strengthening steel structures especially when used to improve fatigue behaviour, further study is required to investigate their effectiveness when applied at different stages of crack propagation in steel elements. This paper presents a numerical study on CFRP retrofitted steel plates with different degrees of damage using the boundary element method (BEM). The numerical results compared well with the experimental data, which demonstrated that the BEM is reliable for crack propagation analysis of CFRP laminate retrofitted steel plates. Finally, a parametric analysis was conducted to investigate the influence of bond length, bond width, CFRP stiffness and adhesive shear modulus on stress intensity factor (SIF) values.

KW - Boundary element method

KW - CFRP laminate

KW - Degree of damage

KW - Fatigue

KW - Steel plate

KW - Stress intensity factor

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DO - 10.1016/j.tws.2014.04.006

M3 - Journal article

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SN - 0263-8231

VL - 82

SP - 145

EP - 158

JO - Thin-Walled Structures

JF - Thin-Walled Structures

ER -

Crack propagation prediction of CFRP retrofitted steel plates with different degrees of damage using BEM

Abstract

Keywords

ASJC Scopus subject areas

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