Influence of hybridisation on energy absorption of 3D woven composites under low-velocity impact loading. Modelling and experimental validation

This study investigates the low velocity impact behaviour and the energy absorption capability of a hybrid 3D woven composite made from S2-glass (GF), T700 carbon (CF) and Dyneema fibres. The laminate was asymmetric, having a high concentration of CF on one side and GF on the other. Experimental results revealed a pseudo-ductile behaviour of the material and a higher capability to absorb impact energy when glass plies are located at the back face of the laminate. A detailed fractographic analysis by means of X-ray microCT and a FE model was included to explain such differences.

Automated summary

This study investigates the low velocity impact behavior and energy absorption capability of a hybrid 3D woven composite made from different fibers. The experimental results reveal the material's pseudo-ductile behavior and its higher capability to absorb impact energy when the glass plies are located at the back face of the laminate.