An extensive study on strain dependence of glass fiber-reinforced polymer-based composites

Farazin, Ashkan; Khan, Afrasyab

doi:10.1177/03093247211043714

Cited by 13 publications

(2 citation statements)

References 146 publications

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“…In recent times, there has been a significant increase in the use of composite materials reinforced with vegetable fibers. Among these stand out the polymer matrix composites, with both biodegradable [ 1 , 2 , 3 ] and non-degradable polymers representing the most diversified among thermoset-based polymer composites [ 4 , 5 , 6 ]. The use of these fibers as reinforcement owe mainly to their lower cost, non-toxicity, low weight, and renewable nature [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Parameter Identification of Fractional Index Viscoelastic Model for Vegetable-Fiber Reinforced Composite

et al. 2022

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In the present work, parameters for adapting the behavior of the uniaxial three-element viscoelastic constitutive model with integer and fractional index derivatives to the mechanical evolution of an epoxy-composite material reinforced with long random henequen fibers, were determined. Cyclic loading–unloading with 0.1%, 0.2%, 0.3%, …, 1.0% controlled strain and staggered fluency experiments at 5 MPa, 10 MPa, and 15 MPa constant tension were performed in stages, and the obtained data were used to determine and validate the model’s parameter values. The Inverse Method of Identification was used to calculate the parameters, and the Particle Swarm Optimization (PSO) method was employed to achieve minimization of the error function. A comparison between the simulated uniaxial results and the experimental data is demonstrated graphically. There exists a strong dependence between properties of the composite and the fiber content (0 wt%, 9 wt%, 14 wt%, 22 wt%, and 28 wt% weight percentage fiber/matrix), and therefore also of the model parameter values. Both uniaxial models follow the viscoelastic behavior of the material and the fractional index version presents the best accuracy. The latter method was noted to be adequate for determination of the aforementioned constants using non-large experimental data and procedures that are easy to implement.

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Section: Introductionmentioning

confidence: 99%

Parameter Identification of Fractional Index Viscoelastic Model for Vegetable-Fiber Reinforced Composite

et al. 2022

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“…[1][2][3][4][5] Due to the high weight resistance ratio and resistance to moisture and corrosion and other unique properties of composites, composite shells have gradually found their place in various industries. [6][7][8][9][10][11][12] Therefore, various analyzes of composite cylindrical shells are of special importance, and the stability and vibration analysis of these shells is one of the most important. [13][14][15][16] Therefore, vibrational analysis of these shells has been considered by many researchers.…”

Section: Introductionmentioning

confidence: 99%

Vibrations of composite structures: Finite element and analytical investigation

Farazin

Zhang

Abed

2022

Polymers and Polymer Composites

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In this examination, the free vibrations of complete composite shells with rectangular openings based on first-order shear deformation theory have been studied. The equations are generally written in such a way that they can be converted to any of Donnell, Love, or Sanders theories. To study the shell with the opening of the problem-solving space, it is elementalized in such a way that the boundary conditions and loading are uniform at the edges of each element. For each element, the governing equations, the boundary conditions of the edges, and the compatibility conditions at the common boundary of the adjacent elements are discretized by the generalized differential quadrature method in the longitudinal and peripheral directions, and by assembling them, a system of algebraic equations is formed. Finally, the natural frequency of the structure is calculated using the solution of the eigenvalue. To validate this method, the results are compared with the results of some articles as well as the results of Abaqus finite element software. After ensuring the efficiency of the present method, it has been used to study the effect of different parameters on the vibrational behavior of shells with and without apertures. These studies show that relatively small openings (c/L <0.3) have little effect on the natural frequency of the shell, regardless of the material and the porcelain layer of the shell. While reducing the ratio of length to radius or increasing the thickness of the shell is also effective in reducing the effects of opening. In addition, the effect of peripheral openings is far less than longitudinal openings.

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Strength and ductility of reinforced concrete using basalt fibre-reinforced polymers

Sivasankar,

Dhal,

Gopalakrishnan

et al. 2023

Polym. Bull.

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An extensive study on strain dependence of glass fiber-reinforced polymer-based composites

Cited by 13 publications

References 146 publications

Parameter Identification of Fractional Index Viscoelastic Model for Vegetable-Fiber Reinforced Composite

Parameter Identification of Fractional Index Viscoelastic Model for Vegetable-Fiber Reinforced Composite

Vibrations of composite structures: Finite element and analytical investigation

Strength and ductility of reinforced concrete using basalt fibre-reinforced polymers

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