Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1450592 | Acta Materialia | 2006 | 9 Pages |
Abstract
A new modeling approach is presented to simulate direct current electrical conductivity in entangled fibrous networks. Isotropic three-dimensional structures, made up of high aspect ratio non-straight conductive fibers, are generated using a spline calculation; the corresponding volume conductivity is determined by integration using finite element software. The influence of the morphological parameters of fibers – aspect ratio and tortuosity – and of fiber–fiber contact electrical properties on electrical percolation is investigated. The results are then compared to experimental data obtained for nanocomposites composed of carbon nanotubes dispersed in a polymer matrix.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Florent Dalmas, Rémy Dendievel, Laurent Chazeau, Jean-Yves Cavaillé, Catherine Gauthier,