Abstract
The influence of tensile load on electrical resistance and acoustic emission (AE) energy of carbon fabric/epoxy-matrix composites were investigated in this study. The experiment results showed that both electrical resistance and AE energy of carbon fabric/epoxy-matrix composites increased with the increase of tensile load. When tensile damage in composites was brought about, the growth rate of AE energy and electrical resistance increased significantly, and the growth rate of AE energy and electrical resistance can be used as the basis of monitoring tensile damage in composites. In addition, compared with AE technology, the electrical resistance measurement by monitoring tensile damage in composites was simpler, and the results were more reliable too.
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