Multiscale analysis and experimental validation of the effective elastic modulus of epoxy-dioctahedral phyllosilicate clay composite

Daramola, Oluyemi Ojo; Olajide, J. L.; Adediran, A. A.; Adewuyi, B. O.; T, Ayodele; Desai, Dawood; Sadiku, Rotimi

doi:10.1016/j.heliyon.2020.e04008

Cited by 12 publications

(5 citation statements)

References 32 publications

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“…The MFH approach is a fast (requires no generation of RVE model and meshing) and efficient way to forecast the effective elastic properties of linear elastic composites. The mean-field stress ( σ ) and strain (  ) in each phase i and associated parameters are given in [42]. Figs.…”

Section: Convergence Of the Results With Regard To Mesh Sizementioning

confidence: 99%

On the effect of stiffness/softness and morphology of interphase phase on the effective elastic properties of three-phase composite material

Fedaoui

Baroura

Arar

et al. 2020

Frattura Ed Integrità Strutturale

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In the present study, Composite material consisting of an elastic homogeneous isotropic matrix in which are embedded coated elastic isotropic inclusions, widely used in many applications is investigate by homogenization approach coupled to the finite elements method. A finite element model is proposed to predict the Young and Shear modulus of the three-phase composite containing spherical inclusions surrounded by a spherical or ellipsoid interphase layer. Three cases of particles volume fractions and interphase was considered with addition of two interphase morphology. Young modulus of interphase region was varied from soft to hard than the matrix properties. We note that interphase morphology and properties plays an important role in the elastic properties of composite with increasing the volume fraction of inclusions and interphase. The results were compared to the first order bounds Voigt and Reuss, and the mean field homogenization techniques. A sensitive study of the effect of mesh density on the results of the von Mises stresses and elastic properties has been made.

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Section: Convergence Of the Results With Regard To Mesh Sizementioning

confidence: 99%

On the effect of stiffness/softness and morphology of interphase phase on the effective elastic properties of three-phase composite material

Fedaoui

Baroura

Arar

et al. 2020

Frattura Ed Integrità Strutturale

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“…From the results of the analyses of Daramoul’s work [ 58 ], it is possible to analyze the influence of homogenization methods on the effectiveness of predicting the mechanical properties of a composite with an epoxy resin matrix filled with kaolinite microparticles of 6% mass fraction in the matrix. The computational methods were compared using the Digimat FE module, the Mori-Tanaka homogenization model, and the Voight model.…”

Section: Discussionmentioning

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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“…32 Daramola et al conducted multi-scale modeling of epoxy/clay composite. 33 The predicted results were also validated experimentally. The less than 5% error was recorded between actual and predicted results.…”

Section: Introductionmentioning

confidence: 88%

“…The obtained regression equation for exposed time and Young's modulus are shown in equation ( 32) and (33), respectively. It can be seen, that the obtained p values are less than 0.05 for both cases.…”

Section: Declaration Of Conflicting Interestsmentioning

confidence: 99%

Mesoscale modeling and biocompatibility of nano-hydroxyapatite reinforced ultra-high molecular weight polyethylene composite

Verma

Keshri

Pathak

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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This work aims to implement an efficient and accurate computational model to predict elastoplastic properties of UHMWPE/nano-HA bio-composite. Mean-field (MF) homogenization and finite element (FE) techniques are implemented to predict the elastoplastic behavior of composite. The predicted results obtained by MF and FE were compared and validated experimentally by fabricating the specimen using microwave-assisted compression molding. The axial and transverse moduli were increased by 49% at a 20% weight fraction of nano-HA. The hardening modulus was also found to be increased by 67%. Further, Degree of crystallinity (Xc) of fabricated composite specimens was determined using differential scanning calorimetry analysis. It was found that the Xc increased 34% with the addition of 20% weight fraction of nano-HA. In vitro, direct contact cytotoxicity and antibacterial test were performed to determine cell adhesion and bacterial behavior of the composite.

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Multiscale analysis and experimental validation of the effective elastic modulus of epoxy-dioctahedral phyllosilicate clay composite

Cited by 12 publications

References 32 publications

On the effect of stiffness/softness and morphology of interphase phase on the effective elastic properties of three-phase composite material

On the effect of stiffness/softness and morphology of interphase phase on the effective elastic properties of three-phase composite material

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

Mesoscale modeling and biocompatibility of nano-hydroxyapatite reinforced ultra-high molecular weight polyethylene composite

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