Electrical Conductivity of Composite Material
Posted May 3, 2021, 2:31 AM EDT Electrical, AC/DC & Electromagnetics Version 5.6 3 Replies
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I have been attempting to model a composite material, specifically a resin that contains conductive nanofillers. In my case, my model is a cube (which represents the resin) containing graphene nanoplatelets (1 nm thick) and silver nanoparticles (10 nm in diameter) dispersed in an arrray throughout the model. The hexagonal features are the nanoplatelets, and the silver nanoparticles are dispersed throughout (not visible). I am utilizing the 'electric currents (ec)' study to model the potential through the resin. The trouble I am having is that in conductivity lab studies performed on similar composites, there is a conductivity observed associated with the resin. However, I cannot seem to replicate that in COMSOL. The image pasted below demonstrates a bird's eye view of the potential gradient as seen from the x-y plane. The terminal is the bottom face/edge, and the ground is the top face/edge. How can I reflect the conductivity of the resin in the study?