Yacht hulls and rudders are usually made from sandwich material constructions which give good bending properties required for large, curved and lightweight-sections. Often these sandwich components are manufactured from aluminium, glass-fibre (GFRP) or carbon-fibre (CFRP) laminates with a hard-foam or honeycomb core sandwich material.
Sandwich components are most susceptible to disbonding, crushed & cracked cores and node-bond splits, usually as a result of in-service, impact damage. These types of defects can be inspected using Laser Shearography within seconds achieving inspection rates of multiple m2/min making it the best technique for both effectiveness and efficiency.
