Interface properties influence the effective dielectric constant of composites
TypeArticles dans des revues avec comité de lecture
In this work we propose a micromechanics model, based on the composite spheres assemblage method, for studying the electrostatic behaviour of particle and porous composites when the interface between the particle (or the pore) and the matrix has its own independent behaviour. Examples from experimental results in porous media and particle composites are utilized to demonstrate the model’s capabilities. The current model shows a better agreement with experiments compared with other available studies. Furthermore, it is shown that the interface dielectric constant is independent of the experiments which prove its nature as a material parameter.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Visualiser des documents liés par titre, auteur, créateur et sujet.
JAVILI, Ali; CHATZIGEORGIOU, George; MCBRIDE, Andrew T.; STEINMANN, Paul; LINDER, Christian (Wiley, 2015)The objective of this contribution is to establish a first-order computational homogenization framework for micro-to-macro transitions of porous media that accounts for the size effects through the consideration of surface ...
FIROOZ, Soheil; SAEB, Saba; CHATZIGEORGIOU, George; MERAGHNI, Fodil; STEINMANN, Paul; JAVILI, Ali (SAGE Publications, 2019)Although both computational and analytical homogenization are well-established today, a thorough and systematic study to compare them is missing in the literature. This manuscript aims to provide an exhaustive comparison ...
CHATZIGEORGIOU, George; HOSSAIN, Mokarram; MERAGHNI, Fodil; STEINMANN, Paul (2015)This work proposes a coupled magneto-mechanical multi-scale model for simulating the curing process of magneto-sensitive polymers. In this type of composites, ferromagnetic particles are mixed with a liquid polymeric matrix ...
Size Effects in a Silica-Polystyrene Nanocomposite: Molecular Dynamics and Surface-enhanced Continuum Approaches DAVYDOV, Denis; VOYIATZIS, Evangelos; CHATZIGEORGIOU, George; LIU, Shengyuan; STEINMANN, Paul; BOHM, Michael C.; MULLER-PLATHE, Florian (TAYLOR & FRANCIS, 2014)Size effects in a system composed of a polymer matrix with a single silica nanoparticle are studied using molecular dynamics and surface-enhanced continuum approaches. The dependence of the composite’s mechanical properties ...
MOKARRAM, Hossain; CHATZIGEORGIOU, George; MERAGHNI, Fodil; STEINMANN, Paul (Elsevier, 2015)polymers. In the case of magneto-sensitive polymers, micron-size ferromagnetic particles are mixed with a liquid polymeric matrix in the uncured stage. The polymer curing process is a complex process that transforms a fluid ...