Nida-Core Corp. (Port St. Lucie, Fla., USA) has introduced NidaFusion SXO, an isotropic core material designed for use in composite structures. NidaFusion SXO uses a triangulated fiberglass pin truss system within the foam structure to mechanically link skins in a sandwich structure. It is specifically designed for structural applications within wind  energy, marine, architectural  and transportation markets. NidaFusion SXO reportedly is the first fiber-reinforced core to achieve type approval by Det Norske Veritas.