Progressive Damage Analysis of Web Crippling of GFRP Pultruded I-Sections

Nunes, Francisco; Silvestre, Nuno; Correia, João R.

doi:10.1061/(asce)cc.1943-5614.0000762

Cited by 19 publications

(14 citation statements)

References 16 publications

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“…The compressive behavior of concrete was defined using the concrete damagedplasticity (CDP) model [32]. In this model, the material principal failure mechanisms were compressive crushing, tensile cracking, and loss of elastic stiffness.…”

Section: Materials Modelingmentioning

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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Section: Materials Modelingmentioning

confidence: 99%

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

2022

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“…81 Significant strength-to-weight ratio, [82][83][84] rapid assembly, excellent corrosion resistance at relatively low maintenance costs, [84][85][86][87][88][89][90][91][92][93][94] increased durability, 92 fatigue resistance, [82][83][84] nonmagnetic/nonconductive characteristics, 95 and an extensive range of thermal properties depending on the type of matrix and fibers used are just some of their various advantages. [96][97][98][99][100] The non-sparking nature of FRP elements (i.e. risk of sparks generation during the use of such structures is greatly reduced) allows their utilization in an extensive range of industrial applications subject to limitations on sparking.…”

Section: Building Elements and Complete Building Systemsmentioning

confidence: 99%

Pultruded materials and structures: A review

Vedernikov

Safonov

Tucci

et al. 2020

Journal of Composite Materials

149

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Currently, the application of pultruded profiles is increasing owing to their advantages, such as light weight, high strength, improved durability, corrosion resistance, ease of transportation, speed of assembly, and nonmagnetic/nonconductive characteristics. This review analyzes the main application fields of elements produced by pultrusion manufacturing processes: bridges and bridge decks, cooling towers, building elements and complete building systems, marine construction, transportation, and energy systems. Analysis of the scientific literature in relation to the mechanical behavior of pultruded elements is presented as well. Finally, this review outlines the future study possibilities, giving the researchers and practitioners the directions for deeper investigation of specific features and exploration of new ones concerning the mentioned aspects of pultruded fiber-reinforced polymer composites.

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“…Previous CDM-based simulation efforts around pultruded GFRPs mostly assume critical input parameters and only the best simulation results are shown. For example, Nunes et al (2017) and Li et al (2017) used solid finite elements to simulate buckling/crushing and transverse impact behavior of pultruded GFRPs, respectively. Almeida-Fernandes et al (2020a) used shell elements to simulate the evolution of damage in pultruded GFRPs subjected to progressive tensile fracture tests.…”

Section: Introductionmentioning

confidence: 99%

“…Almeida-Fernandes et al (2020a) used shell elements to simulate the evolution of damage in pultruded GFRPs subjected to progressive tensile fracture tests. To highlight the challenge and uncertainty around finding suitable input damage parameters, these three studies apply vastly different fiber fracture energies of 2.38 N/mm (Nunes et al, 2017), 55 N/ mm (Li et al, 2017) and 100 N/mm (Almeida-Fernandes et al, 2020a) for similar pultruded GFRPs.…”

Section: Introductionmentioning

confidence: 99%

Deviation-based calibration for progressive damage analysis in pultruded glass fiber reinforced composites

Reiner

2022

International Journal of Damage Mechanics

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This paper presents a systemic calibration methodology to efficiently simulate progressive damage evolution in four different pultruded glass fiber reinforced polymer (GFRP) composites using the strain-based COMposite DAMage Model (CODAM2) in the commercial finite element software LS-DYNA. In particular, Compact Tension (CT), scaled-up CT, and wide CT tests are simulated to find the best set of input parameters by considering four distinct indicators obtained from experimental and numerical load vs displacement data. By combining these indicators into a physically meaningful equivalent deviation value via a linear weighted-sum method, the results show that the most suited input damage variables yield physically accurate crack length predictions which underlines the robustness and accuracy of the proposed method. Furthermore, it is shown that the incorporation of bi-linear softening laws improves CODAM2 simulation results by up to 90%, however it also increases the number of parameters to be calibrated.

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Progressive Damage Analysis of Web Crippling of GFRP Pultruded I-Sections

Cited by 19 publications

References 16 publications

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

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

Pultruded materials and structures: A review

Deviation-based calibration for progressive damage analysis in pultruded glass fiber reinforced composites

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