Compressive behaviour of hollow box pultruded FRP columns with continuous-wound fibres

Alajarmeh, Omar; Zeng, Xuesen; Aravinthan, Thiru; Shelley, Tristan; Alhawamdeh, Mohammad; Mohammed, Ali A.; Nicol, Lachlan; Vedernikov, Alexander; Safonov, Alexander; Schubel, Peter

doi:10.1016/j.tws.2021.108300

Cited by 30 publications

(15 citation statements)

References 24 publications

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“…Pultrusion is claimed to be the most efficient process for the production of thermoplastic FRP composites with constant cross sections [ 9 ]. Composite profiles of various cross sections (flat laminates, hollow box, I-, U-, C-, L-, and T-shape profiles) are widely used in various sectors of industry—transportation [ 10 ], aerospace [ 11 , 12 ], marine construction [ 13 ], civil engineering, and architecture [ 14 , 15 , 16 , 17 ]. Moreover, due to their high strength-to-weight ratio and excellent corrosion resistance, FRP composite bars have gained engineers’ attention as a possible substitute for steel bars used in reinforced concrete structures [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Pre-Consolidated Materials Manufacturing Method on the Mechanical Properties of Pultruded Thermoplastic Composites

et al. 2022

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The choice of a manufacturing process, raw materials, and process parameters affects the quality of produced pre-consolidated tapes used in thermoplastic pultrusion. In this study, we used two types of pre-consolidated GF/PP tapes—commercially available (ApATeCh-Tape Company, Moscow, Russia) and inhouse-made tapes produced from commingled yarns (Jushi Holdings Inc, Boca Raton, FL, USA)—to produce pultruded thermoplastic Ø 6 mm bars and 75 mm × 3.5 mm flat laminates. Flat laminates produced from inhouse-made pre-consolidated tapes demonstrated higher flexural, tensile, and apparent interlaminar shear strength compared to laminates produced from commercial pre-consolidated tapes by as much as 106%, 6.4%, and 27.6%, respectively. Differences in pre-consolidated tape manufacturing methods determine the differences in glass fiber impregnation and, thus, differences in the mechanical properties of corresponding pultruded composites. The use of commingled yarns (consisting of matrix and glass fibers properly intermingled over the whole length of prepreg material) makes it possible to achieve a more uniform impregnation of inhouse-made pre-consolidated tapes and to prevent formation of un-impregnated regions and matrix cracks within the center portion of the fiber bundles, which were observed in the case of commercial pre-consolidated tapes. The proposed method of producing pre-consolidated tapes made it possible to obtain pultruded composite laminates with larger cross sections than their counterparts described in the literature, featuring better mechanical properties compared to those produced from commercial pre-consolidated tapes.

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Section: Introductionmentioning

confidence: 99%

Effects of the Pre-Consolidated Materials Manufacturing Method on the Mechanical Properties of Pultruded Thermoplastic Composites

et al. 2022

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“…Pultrusion is a highly automated and continuous process, which allows elements with a constant cross-section along the length to be produced. There are a lot of variations of shapes of cross-sections; they can be open or closed, solid, or multicellular [31][32][33][34]. The advantage of pultrusion is that it is a cost-competitive method when compared with other technologies, and the resulting product has highly specific properties due to the effective manufacturing process [35].…”

Section: Frp Compositesmentioning

confidence: 99%

Fiber-Reinforced Polymers in Freeform Structures: A Review

2021

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This article is a survey discussing the application of fiber-reinforced polymer composites in freeform structures and their impact on the design and shape generation process. The analysis of case studies showed that the use of FRP composites not only helps to overcome some challenges in the construction of objects with complex geometry, but also creates brand new types of structures and design approaches. On the other hand, there is a problem—although FRP materials are frequently used in construction, the shapes of structures and design methods are often traditional and are simply copied from materials such as wood, concrete, and steel. FRP composites have been applied in civil engineering for several decades, since the 1960s, as building envelopes, façade skins, load-bearing structures, and internal and external reinforcement. The article aims to analyze this accumulated experience and to explore the role of FRP materials in the design of buildings with free, complex, fluid, and organic shapes. A new classification of freeform composite structures is proposed. They are classified in this article according to the methodology applied at the conceptual design stage: structures created by using a geometric approach, a form-finding (equilibrium) approach, or a biomimetic approach. Each approach is described in its own separate section, with a thorough literature and state-of-the-art review.

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“…The main function of concrete fibres is to reduce the appearance and propagation of micro-cracks [34]. There is an increasing use of fibre-reinforced polymer composites as an efficient alternative to traditional construction materials in civil engineering and infrastructure applications [35,36]. Therefore, polypropylene fibres (PP), which do not undermine the durability of concrete, were used in concrete mixes tested in this research work.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Municipal Solid Waste Incineration Ash on the Properties and Durability of Cement Concrete

Vaičienė

Simanavičius

2022

Materials

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The aim of this study is to investigate the effect of municipal solid waste incineration bottom ash from a cogeneration plant on the physical and mechanical properties and durability of cement concrete. Part of the cement in concrete mixtures tested was replaced with 0%, 3%, 6%, 9%, and 12% by weight of municipal solid waste incineration bottom ash. Concrete modified with 6% of bottom ash had a higher density (2323 kg/m3), compressive strength at 28 days (36.1 MPa), ultrasonic pulse velocity (3980 m/s), and lower water absorption rate (3.93%). The tests revealed that frost resistance, determined in all-sided testing directions, of concrete modified with 6%, 9%, and 12% of bottom ash added by weight of cement corresponds to strength grade F100. Such concrete can be used in construction works.

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Compressive behaviour of hollow box pultruded FRP columns with continuous-wound fibres

Cited by 30 publications

References 24 publications

Effects of the Pre-Consolidated Materials Manufacturing Method on the Mechanical Properties of Pultruded Thermoplastic Composites

Effects of the Pre-Consolidated Materials Manufacturing Method on the Mechanical Properties of Pultruded Thermoplastic Composites

Fiber-Reinforced Polymers in Freeform Structures: A Review

The Effect of Municipal Solid Waste Incineration Ash on the Properties and Durability of Cement Concrete

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