Experimental analysis of high velocity impacts of composite fragments on aluminium plates

The improvement of engines is one the ways to diminish fuel consumption in civil aircrafts, and Open Rotors are best promises order achieve a sensible efficiency increment. These have large composite blades that could, event failure, impact against fuselage, totally or partially. In this case, fragments could behave as impactors. design fuselages for adopt these new future, it necessary understand behaviour fragment deformable structure. To end, unidirectional woven composites were impacted at high velocity (up 150 m/s) aluminium panels different velocities. made using AS4/8552 (UD) AGP-193PW (woven) prepregs manufactured by Hexcel Composites, both AS4 fibres 8552 epoxy matrix. High speed video cameras used record process measure residual hence energy absorbed.