Finite Element Modelling Epoxy/Clay Nanocomposites

Chia, Julian Yan Hon; Hbaieb, Kais; Wang, Q.X.

doi:10.4028/www.scientific.net/kem.334-335.785

Cited by 12 publications

(4 citation statements)

References 5 publications

(7 reference statements)

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“…Wang et al [25] used a 3-D finite element model to obtain the elastic properties of a nano-reinforced polymer composite. Chia et al [26] presented a 3-D finite element method to understand the effect of nanoparticles on the mechanical properties of epoxy clay nanocomposite using representative volume element (RVE). Zhu and Narh [27] used a numerical simulation to obtain the tensile modulus of a nano clay / polymer composite.…”

Section: Fig 1: Classification Of Biocomposites [1]mentioning

confidence: 99%

Numerical investigation on mechanical properties of a nanobiocomposite based on date palm fiber and nanoclays with interphase problem

Meliani

Rechak

2021

ENPESJ

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The use of biocomposites has been a major concern in recent decades with the emergence of composites as materials that can replace conventional ones. To improve the mechanical properties of these materials, special attention is devoted to nano-reinforcements. Among these nano-reinforcements, NanoClays (NC) are attracting the attention of many researchers. This nanoparticle, in addition to being biobased, has good mechanical properties and its nanometric dimension allows it to be an interesting reinforcement for the composite because of the NC/Matrix surface contact that it develops. In this study, a 4-phase material (Matrix, NC, Palm fiber and interphase) will be studied and the effect of several parameters (Aspect Ratio (AR), distance between NC and loading point, interface thickness and interfacial conditions) will be assessed and discussed. To do this, a 3D FEM model is developed and a mesh convergence study is pre-established.

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Section: Fig 1: Classification Of Biocomposites [1]mentioning

confidence: 99%

Numerical investigation on mechanical properties of a nanobiocomposite based on date palm fiber and nanoclays with interphase problem

Meliani

Rechak

2021

ENPESJ

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“…In addition to the coexistence of all aggregated, intercalated and exfoliated particles, the number of constitutive nanoclay layers in intercalated and aggregated morphologies vary in different regions of nanoclay reinforced polymer. The majority of studies assumed just either exfoliated [11,77,80,82,83,85,86] or intercalated morphology [78,79,81,84]. Some studies simulated the combination of exfoliated and intercalated ones [6,12,32,69,75,76,87,88].…”

Section: Gap Analysismentioning

confidence: 99%

“…In some FEM modeling of nanoclay/polymer, the interphase between nanoclay and polymer is neglected and perfect bonding is considered . Some authors have modeled this intermediate phase between nanoclay and polymer in their FE models as a continuum medium while the interaction between nanoclay and polymer takes place through a molecular interaction space.…”

Section: Gap Analysismentioning

confidence: 99%

Mechanical Properties of Nanoclay and Nanoclay Reinforced Polymers: A Review

Rafiee

Shahzadi

2018

Polymer Composites

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A literature review is conducted on performed investigations for characterizing Young's modulus of nanoclay platelet as the reinforcing agent of nanoclay/polymer nanocomposites from both experimental and theoretical aspects. The observed discrepancies in the reported results are discussed accordingly. All available investigations for predicting mechanical properties of nanoclay reinforced polymers are also reviewed. The employed methods in ongoing studies are categorized into three groups as atomistic, continuum and multiscale modeling techniques. Those challenging issues which are still in need of more accurate understanding and discussion are identified and outlined through a gap analysis on current investigations. The introduced shortcomings can be considered as prospective research areas for the future studies in the field of estimating mechanical properties of nanoclay based composites. POLYM. COMPOS., 40:431–445, 2019. © 2018 Society of Plastics Engineers

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“…Study on crack deflection mechanism and the strength reduction due to the stress concentration around exfoliated particles was carried out in [15] and toughness and strength were found to increase with the particle aspect ratio. A 3D FE analysis of the gallery failure of epoxy-clay nanocomposites was reported in [16], where the intercalated morphology was modelled with bi-layer tactoids, not intersecting the RVE boundaries. High value of fracture energy associated with the galleries used in that work (and obtained from MD simulations performed for interfaces nylon-6/organoclays) did not allow to capture effects of the gallery failure on the macroscopic behaviour.…”

Section: Introductionmentioning

confidence: 99%

Multiscale Finite Element Modelling of Gallery Failure in Epoxy-Clay Nanocomposites

Pisano

Figiel

2012

MSF

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A multiscale finite element (FE) methodology is applied to study failure behaviour of an intercalated epoxy-clay nanocomposite. A 2D FE model of the nanocomposite is built to capture nanocomposite morphology and gallery failure mechanism. Intercalated morphology is reconstructed using a random dispersion of clay tactoids within the epoxy matrix, while the galleries are modeled using cohesive zone elements. The nanocomposite response is predicted by numerical homogenization technique. The effects of cohesive law parameters (particularly the fracture energy) and clay volume fraction on the macroscopic behavior of the nanocomposite are investigated. The analysis shows that gallery failure is the main cause of strength reduction of the nanocomposite. Moreover, the strength reduction is found to increase with the clay content, which is in a qualitative agreement with available experimental results.

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Finite Element Modelling Epoxy/Clay Nanocomposites

Cited by 12 publications

References 5 publications

Numerical investigation on mechanical properties of a nanobiocomposite based on date palm fiber and nanoclays with interphase problem

Numerical investigation on mechanical properties of a nanobiocomposite based on date palm fiber and nanoclays with interphase problem

Mechanical Properties of Nanoclay and Nanoclay Reinforced Polymers: A Review

Multiscale Finite Element Modelling of Gallery Failure in Epoxy-Clay Nanocomposites

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