Abstract

The paper demonstrates the impact and compression after impact behavior of carbon-fiber reinforced composites with epoxy matrix. Three specimens have been struck with the energies of 8.55 J, 17.1 J and 25.65 J which resulted in the formation of barely visible impact damages. The damaged area has been evaluated using digital shearography. Corresponding residual strength after impact has been measured. Deformation behaviour and buckling processes have been investigated via three-dimensional digital image correlation technique. Discussion has been further supported by theoretical estimations.

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