Abstract
In this study, we have developed a global statistical approach for the characterization of the elastic properties of silica/epoxy nanocomposites. In this approach, we selected a series of scanning electron microscopy (SEM) images of a nanocomposite sample as a representation of the microstructure (representative volume element, RVE). In the next step, we used statistical continuum theory by strong-contrast method for the evaluation of the effective elastic modulus of each SEM image. In the final step, we used 2-dimensional (2D) finite element modeling for the evaluation of the effective elastic modulus of the nanocomposite sample consisting of the preselected set of SEM images (RVE). In addition to the global statistical approach, we have also developed a 3-dimensional (3D) finite element model with the assumption of perfect dispersion of silica nanoparticles inside the epoxy matrix. Comparison between the experimental measurements for the nanocomposite elastic modulus and modeling results by the global statistical approach reveals a fine agreement. We also found that the predictions by the 3D finite element method with perfect dispersion of particles underestimate the experimental results.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
