Micromechanical modeling of glass fiber reinforced plastic material

Micota, Dan; Isaincu, Alexandru; Marșavina, Liviu

doi:10.1016/j.matpr.2020.12.919

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…The study in [ 32 ] used a similar simulation approach for a polyamide composite with 50 wt.% glass fibers, and the obtained maximum relative error of the double inclusion homogenization was less than 9.7%. An interesting approach of the mean-field homogenization of a polypropylene matrix with glass fiber inclusions, built on SEM observations, allowed the mechanical behavior of the material to be predicted, and is presented in [ 33 ]. Another environmentally friendly polypropylene composite modelling approach (besides the composite proposed in this article) and variation with 10, 20, 30, 40, and 50 wt.% bamboo is presented in [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

2021

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Basalt/glass fiber polypropylene hybrid composites were developed as subjects of investigation, with the aim to characterize their properties. An injection molding machine was used to produce the test samples. The following three different tests, at various specimen temperatures, were conducted: tensile test, three-point flexural test, and Charpy impact test. To determine fatigue behavior, the samples were uniaxially loaded and unloaded. Mechanical hysteresis loops were recorded and the dissipation energy of each loop was calculated. To determine the adhesion and dispersion between the fibers and the matrix, the fractured surfaces of the various specimens, after the tensile test, were investigated using a scanning electron microscope. The results show that the production of a composite with both basalt and glass fibers, in a polypropylene matrix with maleic anhydride-grafted polypropylene, can be successfully achieved. The addition of the two types of fibers increased the tensile strength by 306% and the tensile modulus by 333% for a composition, with 20% by weight, of fibers. The material properties were estimated with the help of a simulation software, and validated with a FEA. A satisfactory correlation between the simulation and measurement data was achieved. The error lays in a range of 2% between the maximum stress values. At a lower strain (up to 0.02), the stress values are very well matched.

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Section: Introductionmentioning

confidence: 99%

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

2021

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“…To perform microstructural analysis, the matrix and fiber properties were defined. The experimental data from the uniaxial tensile test ( Table 4 ) were introduced to the matrix description and the elastic-plastic model with isotropic symmetry was selected [ 49 , 50 , 51 , 52 ].…”

Section: The Micromechanical Modelingmentioning

confidence: 99%

The Mechanical Properties Prediction of Poly [(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] (PHBV) Biocomposites on a Chosen Example

2022

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This paper aims to experimentally determine the properties of the poly [(3-hydroxybutyrate)-co-(3-hydroxyvalerate)]—(PHBV)—30% hemp fiber biocomposite, which is important in terms of numerical simulations of product manufacturing, and to evaluate the mechanical properties by means of micromechanical modeling. The biocomposite was manufactured using a single-screw extruder. Specimens for testing were produced by applying the injection molding technology. Utilizing the simulation results of the plastic flow, carried out by the Moldflow Insight 2016 commercial software and the results of experimental tests, the forecasts of selected composite mechanical properties were performed by means of both numerical and analytical homogenization methods. For this purpose, the Digimat software was applied. The necessary experimental data to perform the calculations for the polymer matrix, fibers, and the biocomposite were obtained by rheological and thermal studies as well as elementary mechanical tests. In the paper, the method of determining selected properties of the biocomposite and the method of forecasting its other properties are discussed. It shows the dependence of the predicted, selected properties of the biocomposite on the filler geometry assumed in the calculations and the homogenization method adopted for the calculations. The results of the work allow for the prediction of properties of the PHBV biocomposites—hemp fiber for any amount of filler used. Moreover, the results allow for the estimation of the usefulness of homogenization methods for the prediction of properties of the PHBV-hemp fiber biocomposites. Furthermore, it was found that for the developed and tested biocomposites, the most effective possibility of mechanical properties prediction is using the Mori-Tanaka homogenization model, which unfortunately has some limitations.

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“…Few studies have been published examining the simulation analysis method for analyzing mechanical properties of injection molded fiber‐reinforced polymers. Micota et al [ 13 ] created a material model capable of describing the micromechanical behavior of a composite material made up of a polyphthalamide matrix reinforced with glass fiber inclusions by using the specialized software program Digimat. However, this model does not take the impact of injection molding process into consideration and is not universal for different materials.…”

Section: Introductionmentioning

confidence: 99%

An integrated simulation method for analyzing mechanical properties of injection molded fiber‐reinforced polymers

Gao

Chen

et al. 2022

Polymer Composites

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Micromechanical modeling of glass fiber reinforced plastic material

Cited by 9 publications

References 23 publications

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

The Mechanical Properties Prediction of Poly [(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] (PHBV) Biocomposites on a Chosen Example

An integrated simulation method for analyzing mechanical properties of injection molded fiber‐reinforced polymers

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