Fracture behavior of CFRPs impacted by relatively high-velocity steel sphere

Abstract Carbon fiber reinforced plastics (CFRPs) of 2-mm thickness were made with different interfacial strengths, properties, and sequences of reinforcing fibers. A 5-mm diameter steel sphere was impacted upon the CFRPs at 150– 314 m / s . By energy absorption measurement and in situ morphological observation, the effects of interfacial strength and properties on the fracture behavior of the CFRPs were investigated. On impact at 150 m / s , a weak interface resulted in high energy absorption. The rear layer should consist of high-strength fiber for higher energy absorption in this velocity range.

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