Stochastic modeling of interphase effects for nanoreinforced heterogeneous materials

Abstract : This paper is concerned with the multiscale analysis of nanoreinforced heterogeneous materials and more speci cally, with the probabilistic modeling of interphase e ffects. The latter have been widely investigated (in a deterministic framework), either in an experimental setting or from a computational point of view. First, we investigate, through molecular dynamics (MD) simulations performed on a nanoreinforced polymer, the local morphology and the mechanical nonlinearities induced by the perturbation of the matrix phase surrounding the inclusion. The simulations allow typical results, such as the exhibition of a reinforcing e ffect or the local perturbation of the polymer density, to be recovered. Second, we make use of the aforementionned results in order to assess some stochastic features associated with random fields of physical properties in the interphase region. These mechanical and statistical properties are subsequently used in order to construct and identify a suitable probabilistic model for the interphase elasticity. The model thus obtained serves as a theoretical basis for the defi nition of an equivalent asymptotic interface model.
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Contributor : Christian Soize <>
Submitted on : Sunday, May 11, 2014 - 5:00:36 PM
Last modification on : Thursday, July 18, 2019 - 4:36:06 PM

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T. Le, Johann Guilleminot, Christian Soize. Stochastic modeling of interphase effects for nanoreinforced heterogeneous materials. 11th World Congress on Computational Mechanics (WCCM XI), 5th European Conference on Computational Mechanics (ECCM V), 6th European Conference on Computational Fluid Dynamics (ECFD VI), Jul 2014, Barcelona, Spain. pp.Page: 1-2. ⟨hal-00989429⟩

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