The use of composite to eliminate the effect of welding on the bending behavior of metallic pipes

Alabtah, Fatima Ghassan; Mahdi, E.; Gowid, Samir

doi:10.1016/j.compstruct.2019.111793

Cited by 13 publications

(7 citation statements)

References 26 publications

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“…The beams subjected to 3PL showed lower ultimate load-carrying capacities than those in 4PL, as shown in Figure 37, at both spacing values. This observation agrees with the findings in [48][49][50] for different materials tested in 3PL and 4PL schemes. The combined effects of the flexure and shear stresses in the vicinity of the loading point in the 3PL scheme resulted in higher stresses in the beam compared to the 4PL scheme.…”

Section: Loading Schemesupporting

confidence: 92%

Experimental and Numerical Investigation of the Behavior of Steel Beams Strengthened by Bolted Hybrid FRP Composites

et al. 2023

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The strengthening of steel beams using hybrid fiber-reinforced polymers (HFRPs) has gained enormous attention over the last decades. Few researchers have investigated the effectiveness of the fastening techniques without a bonding agent to overcome the undesirable debonding failure of the bonded FRP–steel system. This paper reports the outcomes of experimental and numerical investigations conducted on steel beams strengthened by HFRP using steel bolts. Twenty-two steel beams were tested in four-point loading to investigate the effect of the HFRP length and the bolt arrangement on the flexural behavior of the strengthened systems. The observed failure modes, load-deflection relations, deflection profiles, and strain measurements were also studied. The tested beams showed a ductile behavior, with 15.1 and 22.2% enhancements in the yield and ultimate flexural capacities, respectively. Simplified empirical equations were developed to predict the ultimate load of the bolted HFRP–steel beams. ANSYS software was used to model the beams’ behavior and investigate the effects of the HFRP thickness, bolt spacing, steel grade, loading scheme, and beam length on the effectiveness of the adopted fastening technique. Increasing the HFRP length enhanced the utilization of HFRPs as well as the beam’s ductility, with a reduction of up to 51.2% in the mid-span deflection. Moreover, the strain compatibility of the HFRP–steel beams was improved with an 87.2% reduction in the interfacial slippage. The bolt arrangement showed an insignificant effect on the overall performance of the beams. The numerical results verified the effectiveness of the fastening technique in enhancing the flexural performance of the steel beams, with gains of up to 16.7% and 34.5% in the yield and ultimate load-carrying capacities, respectively.

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Section: Loading Schemesupporting

confidence: 92%

Experimental and Numerical Investigation of the Behavior of Steel Beams Strengthened by Bolted Hybrid FRP Composites

et al. 2023

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“…High constraint caused by flexion can affect their performances and lead to the failure and damage. Recently, Al-Abtah et al, [15] have reported that, in service, pipes can be subjected to bending loading (called pipe bending), and consequently, compressive, tensile and also shear stresses can happen. Firouzsalari et al, [16] have focused on studying the energy absorption capacity for flax fabric-reinforced epoxy pipes subjected to lateral compression.…”

Section: Tablementioning

confidence: 99%

Mechanical behavior and fracture characteristics of polymeric pipes under curved three point bending tests: Experimental and numerical approaches

Jemii

Bahri

Taktak

et al. 2022

Engineering Failure Analysis

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“…More recently, pipes made of steel with external warps of glass or carbon-based composite layers have been introduced [ 29 ]. The idea behind the external layers of composite materials is to prevent/eliminate external corrosion and add extra mechanical strength to the pipe [ 34 ]. GFR/epoxy are the most used materials for overwrapping metallic pipes due to their low cost, good mechanical and insulating properties [ 35 , 36 ], and deterioration resistance, especially when they interact with sweet or salty water.…”

Section: Introductionmentioning

confidence: 99%

External Corrosion Behavior of Steel/GFRP Composite Pipes in Harsh Conditions

2021

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In this study, we report on the corrosion behavior of hybrid steel/glass fiber-reinforced polymer (GFRP) composite pipes under harsh corrosive conditions for prolonged durations. Specimens were immersed in highly concentrated solutions of hydrochloric acid, sodium chloride, and sulfuric acid for durations up to one year. Detailed qualitative analysis using scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), and energy-dispersive X-ray spectroscopy (EDX) is presented. It is shown that the hybrid pipes have excellent corrosion resistance with a corrosion rate of less than 1% of the corrosion rate for conventional steel pipes. That low corrosion rate can be attributed to the formation of pores in the GFRP layer due to increased absorption and saturation moisture in the material with increased soaking time. This can be reduced or even prevented through a more controlled process for fabricating the protective layers. These promising results call for more utilization of GFRP protective layers in novel design concepts to control corrosion.

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The use of composite to eliminate the effect of welding on the bending behavior of metallic pipes

Cited by 13 publications

References 26 publications

Experimental and Numerical Investigation of the Behavior of Steel Beams Strengthened by Bolted Hybrid FRP Composites

Experimental and Numerical Investigation of the Behavior of Steel Beams Strengthened by Bolted Hybrid FRP Composites

Mechanical behavior and fracture characteristics of polymeric pipes under curved three point bending tests: Experimental and numerical approaches

External Corrosion Behavior of Steel/GFRP Composite Pipes in Harsh Conditions

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