Compressive transverse fracture behaviour of pultruded GFRP materials: Experimental study and numerical calibration

Almeida-Fernandes, Lourenço; Silvestre, Nuno; Correia, João R.; Arruda, M.R.T.

doi:10.1016/j.compstruct.2020.112453

Cited by 20 publications

(7 citation statements)

References 18 publications

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“…A function about the normalized notch length (α) and the correction factor is proposed by linear fitting. Equation (9) shows the correction function:…”

Section: Discussionmentioning

confidence: 99%

“…To investigate the fracture toughness of FRP composites, Lourenço et al 9 conducted an experiment about compressive transverse fracture behavior of pultruded GFRP materials and found that the transverse fracture toughness ranged between 36 and 67 N/mm. Rani and Rami 10 used the ECT (Extended Compact Tension) specimen to measure the trans-layer fracture toughness of thick-section FRP composites.…”

Section: Introductionmentioning

confidence: 99%

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Translaminar mode-I fracture toughness experiment of pultruded GFRP laminates using extended compact tension specimen

Xiong

Meng

Zhao

et al. 2022

Journal of Composite Materials

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This paper conducted experiments and theoretic analysis of the fracture performance of pultruded GFRP (Glass Fiber Reinforced Polymers) laminates. The mode-I fracture toughness of pultruded GFRP laminates was evaluated by the eccentrically loaded, Extended Compact Tension (ECT) specimen. The geometry of specimen and experimental procedure refer to ASTM E1922. A total of 16 specimens were tested, which included 0° and 90° roving orientation. Finite element analysis with the Virtual Crack Closure Technique (VCCT) was implemented to calibrate the experimental results. A correction function for normalized notch length was proposed for pultruded GFRP translaminar fracture toughness. Carpet plot was designed to discuss the relationship between fiber volume ratio and fracture toughness, which demonstrated that the fracture toughness strongly correlated with the fiber volume ratio. Also, the effect of fraction of 0° layers on fracture toughness and material orthotropy was studied. The relationship of material orthotropy parameter and fracture toughness was discussed.

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“…A function about the normalized notch length (α) and the correction factor is proposed by linear fitting. Equation (9) shows the correction function:…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Translaminar mode-I fracture toughness experiment of pultruded GFRP laminates using extended compact tension specimen

Xiong

Meng

Zhao

et al. 2022

Journal of Composite Materials

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show abstract

“…Furthermore, there were variations in the cuff segment beam length, measuring 100, 130, and 160 mm. The MA 310 (Methacrylate Adhesive), which has an adhesive thickness of about 1 mm at the glue line, and additionally the 6 bolts at 8 mm diameter at top and bottom in the column beam connection was used to assemble each specimen [10]. Two primary displacement measures were employed to characterize the behavior of the frame: (1) deflection along the load application line, and (2) rotation of the beam relative to the column at the bolted connection.…”

Section: Net-tensionmentioning

confidence: 99%

Experimental and finite element investigation on bolted connection in monolithic 3-dimensional cuff with pultruded box section

Kajendran,

Narayanan

2024

Eng. Res. Express

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This article presents a concise and practical research study on the application of pultruded GFRP (Glass Fiber Reinforced Polymer) hollow sections in structural engineering. Experimental and computational investigations are conducted on the utilization of GFRP cuff components for joining tubular pultruded fiber-reinforced polymer (PFRP) beams and columns. Both adhesive bonding and bolted connections are explored for connecting PFRP box sections of beam-column interfaces. The study investigates twelve series of beam-to-column connections under monotonic loading conditions, varying cuff geometry. A finite element model is developed to represent the pultruded fiber-reinforced polymer box sections, columns, and cuff sections. The model's accuracy in depicting frame stiffness and cuff damage patterns, considering different thicknesses and lengths of GFRP cuff connections, is validated against experimental test frame behavior. This research fills a gap in scientific inquiry regarding GFRP hollow profiles, providing valuable insights for structural engineering applications.

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“…To study the effect of tensile strength of GFRP I-beam on the flexural behavior of the encased beams, two tensile strengths of 258 MPa and 416.6 MPa [37] were investigated, besides the tensile strength of 347.5 MPa, which was obtained in this study according to (ASTM Designation: D 695-15) [27]. The peak loads and the corresponding mid-span deflections increased as the tensile strength of GFRP increased as listed in Table 9 and shown in Figure 17.…”

Section: Effect Of the Tensile Strength Of The Gfrp Beammentioning

confidence: 99%

Flexural Performance of Encased Pultruded GFRP I-Beam with High Strength Concrete under Static Loading

2022

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There is an interesting potential for the use of GFRP-pultruded profiles in hybrid GFRP-concrete structural elements, either for new constructions or for the rehabilitation of existing structures. This paper provides experimental and numerical investigations on the flexural performance of reinforced concrete (RC) specimens composite with encased pultruded GFRP I-sections. Five simply supported composite beams were tested in this experimental program to investigate the static flexural behavior of encased GFRP beams with high-strength concrete. Besides, the effect of using shear studs to improve the composite interaction between the GFRP beam and concrete as well as the effect of web stiffeners of GFRP were explored. Encasing the GFRP beam with concrete enhanced the peak load by 58.3%. Using shear connectors, web stiffeners, and both improved the peak loads by 100.6%, 97.3%, and 130.8%, respectively. The GFRP beams improved ductility by 21.6% relative to the reference one without the GFRP beam. Moreover, the shear connectors, web stiffeners, and both improved ductility by 185.5%, 119.8%, and 128.4%, respectively, relative to the encased reference beam. Furthermore, a non-linear Finite Element (FE) model was developed and validated by the experimental results to conduct a parametric study to investigate the effect of the concrete compressive strength and tensile strength of the GFRP beam. The developed FE model provided good agreement with the experimental results regarding deformations and damaged patterns.

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Compressive transverse fracture behaviour of pultruded GFRP materials: Experimental study and numerical calibration

Cited by 20 publications

References 18 publications

Translaminar mode-I fracture toughness experiment of pultruded GFRP laminates using extended compact tension specimen

Translaminar mode-I fracture toughness experiment of pultruded GFRP laminates using extended compact tension specimen

Experimental and finite element investigation on bolted connection in monolithic 3-dimensional cuff with pultruded box section

Flexural Performance of Encased Pultruded GFRP I-Beam with High Strength Concrete under Static Loading

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