Abstract
The aim of the research article is to develop a representative volume element using finite elements to study the buckling stability of graphene/polymer nanocomposites. Research work exploring the full potential of graphene as filler for nanocomposites is limited in part due to the complex processes associated with the mixing of graphene in polymer. To overcome some of these issues, a multiscale modeling technique has been proposed in this numerical work. Graphene was herein modeled in the atomistic scale, whereas the polymer deformation was analyzed as a continuum. Separate representative volume element models were developed for investigating buckling in neat polymer and graphene/polymer nanocomposites. Significant improvements in buckling strength were observed under applied compressive loading when compared with the buckling stability of neat polymer.
Highlights
In the recent past, graphene has emerged as a potential candidate for developing nanocomposites with improved properties [1,2]
Various multiscale models are available in the literature for predicting the properties of carbon nanotube (CNT)-based nanocomposites [3,4,5], but very few models have been presented to study graphene nanocomposites
Montazeri and Tabar [8] developed a finite element (FE)-based multiscale model to investigate the elastic constants of graphene-based nanocomposites
Summary
Graphene has emerged as a potential candidate for developing nanocomposites with improved properties [1,2]. Various multiscale models are available in the literature for predicting the properties of carbon nanotube (CNT)-based nanocomposites [3,4,5], but very few models have been presented to study graphene nanocomposites. Cho et al [6] developed a numerical model in conjunction with Mori-Tanaka approach to study the elastic constants of randomly distributed graphene in polymer. Awasthi and his team [7] investigated the load transfer mechanism between polyethylene and graphene sheets. Montazeri and Tabar [8] developed a finite element (FE)-based multiscale model to investigate the elastic constants of graphene-based nanocomposites
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