Introduction

• A quantitative non-destructive evaluation (NDE) of impact damaged composite laminates using a volumetric ultrasonic (UT) pulse-echo immersion testing system was carried out

• Non-crimp fabric (NCF) composite laminates made by resin infusion under flexible tooling (RIFT) technology were considered

• To verify the influence of diverse material design configurations, two different NCF laminate lay-ups were considered:

• biaxial

• quadriaxial