Fatigue performance of tensile steel members strengthened with CFRP plates

Bocciarelli, Massimiliano; Colombi, Pierluigi; Fava, Giulia; Poggi, Carlo

doi:10.1016/j.compstruct.2008.02.004

Cited by 85 publications

(47 citation statements)

References 16 publications

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“…The patch repair method which has been utilised by researchers is strengthening the cracked member with fibre reinforced polymers [6][7][8][9][10]. Some researchers have proved the fatigue resistance of the bond under fatigue loading is even better than the steel cover plates (Eurocode 3) welded to the defected member [7,11].…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers have proved the fatigue resistance of the bond under fatigue loading is even better than the steel cover plates (Eurocode 3) welded to the defected member [7,11]. Composite patch repairs are clearly less damaging than the conventional methods of repair based on drilling holes in or attaching external metallic patches to the original structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of prestressed CFRP patches on crack growth of centre-notched steel plates

Emdad

Al-Mahaidi

2015

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of prestressed CFRP patches on crack growth of centre-notched steel plates

Emdad

Al-Mahaidi

2015

Composite Structures

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“…Al-Zubaidy et al [11] compared the bond characteristics of double strap joints under static and dynamic tensile loads, and investigated the effects of the number of CFRP layers, bond lengths, and loading rates. Bocciarelli et al [12] and Liu et al [13] studied the fatigue behavior of CFRP-strengthened steel plates and verified the superiority of CFRP in improving the fatigue resistance of specimens. Li et al [14] studied the tensile behavior of steel plates bonded with basalt fiber reinforced polymer (BFRP) from the perspective of novel materials.…”

Section: Introductionmentioning

confidence: 98%

Study of the Tensile Properties of CFRP Strengthened Steel Plates

et al. 2015

Polymers

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This paper presents the experimental results of steel plates strengthened with carbon fiber reinforced polymer (CFRP) sheets under tensile load. The number of CFRP layers (ranging from one to four), strengthening schemes (single-sided and double-sided bonding), and temperatures (ranging from 25 to 120˝C) were investigated. Results showed that the number of CFRP layers and strengthening schemes had insignificant effects on failure modes of specimens. The failure modes were dominated by the degradation of resin matrix at temperatures lower than T g + 10 or 20˝C, where T g is the glass transition temperature, and were dominated by the volume decrease of resin matrix at temperatures above that. Through bonding CFRP sheets, the ultimate load and post-elastic stiffness of specimens were significantly increased. However, the increase in the number of CFRP layers also led to the decrease in strengthening and stiffening efficiency. The double-sided strengthened specimens showed more preferable mechanical properties than the single-sided strengthened specimens. As temperature increased, significant decreases in ultimate load and post-elastic stiffness were observed. Analytical modeling to predict the mechanical properties at ambient and elevated temperatures were conducted, respectively. The modeling results were verified by the test data.

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“…At that, the resistance of the carbon fiber to stretching is many times higher than that of steel, and the Young's modulus may be close to or even much higher than that of steel [5]. The application of CFRPs in building structures strengthening is also considered in [6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

CFRP reinforcement adhesive joint performance on the transversely damaged steel elements under axial tension

Danilov

2017

MATEC Web Conf.

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Abstract.The analytic solution for analysis and design of bonded CFRPreinforcement of tension elements with discontinuity type damage are presented. Analytical expressions are obtained from integrating a homogeneous second-order differential equation describing the equilibrium in the adhesive layer. A simplified equilibrium model is considered with only shear stresses in the adhesive layer taken into account. Comparison of numerical results obtained on the basis of analytical expressions and on the basis of FEM in the MSC Nastran software is performed. The graphical and tabular dependences for the joint adhesive layer parameters are presented. It is shown that the bearing capacity of the adhesive joint is significantly influenced not only by the strength of the glue, but also, and to a great extent, by its shear modulus. The corresponding effective length of the adhesive layer is calculated which increase does not result in the bearing capacity of the joint increase.

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Fatigue performance of tensile steel members strengthened with CFRP plates

Cited by 85 publications

References 16 publications

Effect of prestressed CFRP patches on crack growth of centre-notched steel plates

Effect of prestressed CFRP patches on crack growth of centre-notched steel plates

Study of the Tensile Properties of CFRP Strengthened Steel Plates

CFRP reinforcement adhesive joint performance on the transversely damaged steel elements under axial tension

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