Validation of Micro-Meso Electrical Relations for Laminates with Varying Anisotropy

Lakshmi Selvakumaran, Gilles Lubineau

Research output: Contribution to journalArticlepeer-review

Abstract

For electrical impedance tomography (EIT) to be useful in monitoring transverse cracks in composites, it is imperative to establish the relation between conductivity and cracking density. Micro to meso scale homogenization has been developed for classical carbon fiber reinforced polymer (CFRP) laminate which provides such a relationship. However, we have shown in previous studies that the detectability of transverse cracks in such CFRP, which are characterized by very anisotropic electrical properties, is poor. Then, it is better to lower the electrical anisotropy, which can be achieved by various technologies including doping the polymeric resin by conductive nanoparticles. However, the validity of mesoscale homogenization for laminates with such low anisotropy has not been tested before. Here, we show that the mesoscale damage indicator is intrinsic for composites with varying anisotropy.
Original languageEnglish (US)
Pages (from-to)435-442
Number of pages8
JournalApplied Mechanics and Materials
Volume784
DOIs
StatePublished - Aug 2015

Fingerprint Dive into the research topics of 'Validation of Micro-Meso Electrical Relations for Laminates with Varying Anisotropy'. Together they form a unique fingerprint.

Cite this