The Numerical and Experimental Derivation of Effective Electric Conductivities for Polysiloxane-Matrix based Composites

摘要

A numerical approach for the determination of effective electric conductivities ofrnpolysiloxane matrix based plain weave textile composites is presented. The proposedrnapproach combines the Mori-Tanaka mean field theory and the finite element elementrnsimulations within the concept of statistically equivalent periodic unit cell. The resultsrnof laboratory measurements of effective conductivities of two types of composite laminatesrnmade of resistive basalt and conductive carbon fabrics bonded to highly resistivernpolymer matrix are also presented and compared with numerical predictions. Althoughrnavailable only for through-thickness properties these comparisons support thernselected fully uncoupled hierarchical modeling strategy. Nevertheless, to fully acceptrnthis approach further laboratory investigation is required for quantifying in particularrnthe inplane response of these material systems.