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Impact damage tolerance is provided in intensity design on composites. The compression intensity of impacted composites requires more than 60% of its original intensity. The influence of impact on compressive intensity and electrical resistance of carbon fabric/epoxy-matrix composites was studied in this paper. The experimental results shows that impact can cause damage in composites, degenerate compressive intensity, and increase resistance. The electrical resistance change rate was used as an evaluation indicator of impact damage tolerance of composites. Impact damage, which results from the applying process of composites, can be identified in time by electrical resistance measurement. So, the safety performance of composites can also be improved.
The compression of intensity and electrical resistance of carbon fabric / epoxy-matrix composites was studied in this paper . The experimental results shows that impact can cause damage in composites, degenerate compressive intensity, and increase resistance. Impact electrical resistance change rate was used as an evaluation indicator of impact damage tolerance of composites. Impact damage, which results from the applying process of composites , can be identified in time by electrical resistance measurement. So, the safety performance of composites can also be improved.