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

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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.

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Periodical:

Edited by:

K. Saanouni

Pages:

435-442

Citation:

L. Selvakumaran and G. Lubineau, "Validation of Micro-Meso Electrical Relations for Laminates with Varying Anisotropy", Applied Mechanics and Materials, Vol. 784, pp. 435-442, 2015

Online since:

August 2015

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