A novel technique to improve the compressive strength and ductility of glass fiber reinforced polymer (GFRP) composite bars

Liu, Yue; Zhang, Hongtao; Tafsirojjaman, T.; Dogar, Attiq Ur Rahman; Alajarmeh, Omar; Yue, Qingrui; Ferdous, Wahid

doi:10.1016/j.conbuildmat.2022.126782

Cited by 34 publications

(12 citation statements)

References 38 publications

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“…Another advantage of using a composite over a conventional type of material is the thermal and Revised:29 March , 2022, Accepted:9 May , 2022 chemical resistance as well as the electrical insulation properties [3]. Unlike conventional materials, composites can have multiple properties not often found in a single material [4,5]. The aircraft engineers are increasing searching for the materials that have many advantages regarding densities, strength, stiff, abrasion ,impact resistance and resist corrosion [6].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Fiber-Adhesive Composite on Bond Strength of Plastic Plates- Part III: The Effect of pH on Mechanical Behavior and Mechanical Properties

Noaman

Ebrahiem

Abdelrahman

et al. 2023

Journal of Advanced Engineering Trends

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Composites have been found to be the most promising and discerning material available in this century. Fiberreinforced plastic is a composite material wherein a polymer is reinforced with fibers to enhance or add properties. These fibers are typically glass or carbon, although aramid, basalt, and even wood and paper have been used. Fiber reinforced plastics are commonly used in aerospace, automotive, marine, and construction industries because of their corrosion resistance and low weight-to-strength ratio.In this work, the effect of acidic , alkaline and neutral mediums on the PVC / PVC sandwich plates with 0.95 Wt. % glass fiber blended with different types of adhesive materials (epoxy, polyester and poly vinyl acetate) were studied deeply. Different pH values (3, 5, 7, 9 and 11) as well as three time of exposure (2 hrs., 4 hrs. and 6 hrs.) were adopted. The mechanical properties of the PVC / PVC sandwich plates with glass fiber blended with different types of adhesive materials such as tensile strength, ultimate strength, modulus of elasticity, energy to fracture, impact energy and adhesion shear at different pH values were studied.It has been found that the mechanical properties of PVC / PVC sandwich plates with 0.95 Wt. % glass fiber blended with different types of adhesives decrease with increasing the time in both strong alkaline medium, acidic medium and is constant in neutral medium.

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Section: Introductionmentioning

confidence: 99%

The Effect of Fiber-Adhesive Composite on Bond Strength of Plastic Plates- Part III: The Effect of pH on Mechanical Behavior and Mechanical Properties

Noaman

Ebrahiem

Abdelrahman

et al. 2023

Journal of Advanced Engineering Trends

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“…Composite materials allow the problem of maintaining a high level of physical and mechanical characteristics while reducing the structure weight to be solved in industries such as space, aviation, automotive, construction, etc. Trends demonstrate that the development of technology for the production of the composite materials based on a polymer matrix and the growth of their usage in designs [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading

et al. 2023

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Composite structures during an operation are subjected to various types of external loading (impact, vibration, cyclic, etc.), which may lead to a decrease in mechanical properties. Previously, many experimental investigations of the mechanical behavior of composites under uniaxial cyclic loading were carried out. Acquisition of new data on the reduction of composite materials’ mechanical characteristics under conditions of multiaxial cyclic loading, as well as verification of existing models for calculation of the residual properties, are relevant. Therefore, this work is devoted to the experimental investigation of the mechanical behavior of fiberglass tubes under proportional cyclic loading. Static and fatigue tests were carried out under tension with torsion conditions. Inhomogeneous strain fields were obtained using a non-contact optical video system VIC-3D. The structural damage accumulation processes were analyzed by an AMSY-6 acoustic emission signals recording system. Surface defects were determined using a DinoLite microscope. Residual dynamic elastic modules were calculated during fatigue tests, and fatigue sensitivity curves were built. Data was approximated using various models, and their high descriptive capability was revealed. Damage accumulation stages were determined. The dependence of the models’ parameters on a stress state were observed. It was concluded that multiaxial cyclic loading leads to a significant decrease in mechanical properties, which should be taken into account in composite structure design.

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“…It has excellent properties of lightweight [ 2 , 3 ], high strength [ 4 , 5 ], corrosion resistance [ 6 , 7 , 8 ], and fatigue resistance [ 9 , 10 ]. In recent years, FRP has gradually attracted more popularity in the field of civil engineering [ 11 , 12 , 13 ]. Composite materials include carbon, glass, basalt, and aramid FRPs.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Bonded Anchorage of Carbon Fiber Reinforced Polymer Prestressed Strands

Jia¹,

Wang

Tafsirojjaman

2022

Polymers

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Aiming at the problems of a large number of corrosion and fatigue damage of the current prestressed steel strands, this paper adopts carbon fiber-reinforced composite (CFRP) strand with better corrosion resistance and fatigue resistance and uses it in concrete structures. The bond anchorage is usually used to anchor CFRP tension members, which bonds the CFRP through the binding medium. Through experimental research on the CFRP strand bond anchorage, the inner taper of the CFRP prestressed strand cone was anchored and the influence of different anchor lengths and bonding media on the anchorage performance was determined. The test results demonstrate that the taper of the conical anchorage described in this paper is a key factor affecting its anchorage performance and increasing the inner taper within a certain range is beneficial to improving the anchorage performance of the conical anchorage. The bonded anchorage of the CFRP prestressed strand with a 200 mm anchor is the most reliable and efficient, as the taper of the 200 mm anchor is the largest. The average anchoring efficiency coefficient of the 200 mm anchor was 96.4%, which is 3.7% and 2.6% higher than the average anchoring efficiency coefficient of 220 mm and 250 mm anchors, respectively. The anchoring efficiency of the anchor is also high (94.1%) when the epoxy resin mortar is used as the bonding medium. Moreover, after an appropriate amount of quartz sand is added to the epoxy resin, the overall comprehensive performance of the anchor can be improved to a certain extent and the stress of the CFRP strand can be improved. The coupling between ultra-high-performance concrete dry mix (UHPC-GJL) and CFRP strand materials is not suitable for UHPC-GJL being used, as its binding medium as the average anchoring efficiency coefficient is only 44.5% when UHPC-GJL is used as the anchor bonding medium.

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A novel technique to improve the compressive strength and ductility of glass fiber reinforced polymer (GFRP) composite bars

Cited by 34 publications

References 38 publications

The Effect of Fiber-Adhesive Composite on Bond Strength of Plastic Plates- Part III: The Effect of pH on Mechanical Behavior and Mechanical Properties

The Effect of Fiber-Adhesive Composite on Bond Strength of Plastic Plates- Part III: The Effect of pH on Mechanical Behavior and Mechanical Properties

Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading

Experimental Research on Bonded Anchorage of Carbon Fiber Reinforced Polymer Prestressed Strands

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