Abstract
Electrical properties of a carbon/epoxy composite are investigated. First, the electrical resistance such as contact resistance at electrodes and the conductivity of the specimens are measured for unidirectional and cross-ply laminates at temperatures ranging from 25 to 200°C. Secondly, the temperature rise due to Joule heat is measured for those laminates. Thirdly, the change in the electrical resistance during the heat treatment is investigated to monitor the post-cure of the composite. Finally, it is confirmed that the transverse cracking in a cross-ply laminate at -100°C is constrained by Joule heat.
