Fatigue Life Enhancement for Steel Girders Using Ultra-High Modulus Carbon Fiber-Reinforced Polymer

El-Emam, Hesham M.; Mustafic, Mirnes; Salim, Hani; El-Sisi, Alaa; Sallam, Hossam El-Din M.

doi:10.1061/9780784482230.018

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Moreover, due to the promising results offered by composites, the adhesively bonded composite patches are also used for the repair and reinforcement of metallic structures. [12,13] The bonded composite patches and joints results in lesser weight compared with welded reinforcements. The application of external patch influences the stress distribution and plastic zone around the crack tip.…”

Section: Introductionmentioning

confidence: 99%

Flexural static and fatigue response of patch repaired laminated composites for different patch‐parent configurations

Bhatia

Arockiarajan

2020

Polymer Composites

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This work involves an experimental investigation of the static and fatigue behavior of patch repaired laminates under flexural loading. At first, a static flexural study is conducted for two types of parent laminates comprising 4plies ([0 ] 4 & [45 ] 4) and 8-plies ([0 ] 8 & [45 ] 8) of woven carbon fiber. The repair is conducted by two types of patches with stacking sequence [0 ] 2 and [45 ] 2. Three different repair configurations involving patch bonded on the compressive side, tensile side, and both the sides of the parent specimens, have been tested. Digital image correlation has been employed to capture the deflection of the specimens. In order to understand the vulnerability of patch repaired laminates to cyclic loading, the load controlled constant amplitude fatigue tests have been conducted on 8-ply repaired laminates. Different failure modes, distinctive to each type of repair configurations have been observed. The results of this work provide more insight to the influence of various parameters viz. number of plies, fiber orientation, patch placement, and so forth, on the flexural behavior of repaired laminates.

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Section: Introductionmentioning

confidence: 99%

Flexural static and fatigue response of patch repaired laminated composites for different patch‐parent configurations

Bhatia

Arockiarajan

2020

Polymer Composites

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“…It is observed that fatigue life is very much responsive to adhesive thickness and fatigue life increases with increase in adhesive thickness. El-Emam et al used ultra-high modulus (UHM) CFRP laminates to enhance the fatigue life of pre-cracked steel beams [9]. They found positive results in UHM carbon fiber reinforced polymer and the life is much increased with UHM CFRP.…”

Section: Introductionmentioning

confidence: 99%

Effect of Slenderness Ratio on Fatigue Life of CFRP Strengthened Steel I-Beam

Islam

Hasib

2020

International Journal of Engineering and Applied Sciences

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Carbon fiber reinforced polymers (CFRP) to repair and strengthen the steel I-beam has been increasingly used since last decade. CFRP composites bonded to steel members offer many advantages over steel plate bonding including excellent corrosion resistance, high stiffness and high strength to weight ratios etc. This study numerically investigates the fatigue performance of CFRP strengthened steel I-beam. One non-strengthened control beam and several strengthened beams using steel plates and CFRP strips were investigated primarily. The effect of slenderness ratios of web on fatigue behavior of CFRP strengthened steel I-beam is investigated. The beams were simulated in full three-dimension and fatigue life was investigated by using general-purpose finite element program, ANSYS. Simply supported beam subjected to two loads on compression flange is analyzed to show the effect of CFRP and slenderness ratios on fatigue behavior of steel I beam. The results show, that the life cycle of a CFRP strengthened beam before failure is higher than that of bare beam. It is also observed that beams with higher slenderness ratios (fixed thickness of the web) give better fatigue performance.

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Seismic performance of steel connections with double-leg energy dissipation cover plates

Meng

et al. 2022

Structures

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Fatigue Life Enhancement for Steel Girders Using Ultra-High Modulus Carbon Fiber-Reinforced Polymer

Cited by 3 publications

References 8 publications

Flexural static and fatigue response of patch repaired laminated composites for different patch‐parent configurations

Flexural static and fatigue response of patch repaired laminated composites for different patch‐parent configurations

Effect of Slenderness Ratio on Fatigue Life of CFRP Strengthened Steel I-Beam

Seismic performance of steel connections with double-leg energy dissipation cover plates

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