Visualization of Progress of Internal Damage in Carbon Fiber Composite Materials and Mechanism of Impact Strength

Carbon fiber reinforced plastic (CFRP) has attracted attention as a material with superior specific strength and is now used as a substitute material in various industrial products. However, in combination with the existence of adhesive interfaces between the carbon fibers and resin, the failure behavior of CFRP is also extremely complex. Moreover, not only static tests but also dynamic tests are required in order to secure higher reliability.
In this article, a bending test was performed in an X-ray CT system, and the internal damage during the test was visualized. A 3-point bending impact test was also performed to evaluate the temperature dependency and strain rate dependency of the flexural strength of CFRP.

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Materials Testing & Inspection, Non-Destructive Testing, Impact Testing
Carbon fiber reinforced plastic, CFRP, composite material, thermoplastic resin, thermoplastic CFRP, impact test, temperature dependency, strain rate dependency, bending test, X-ray CT, internal observation, Hydrocarbon Processing Industry (Petrochemical, Chemical), Rubber, Resin, Plastics, SMX-100CT, HITS-P10
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