Aircraft manufacturing requires the most efficient design at the lowest cost. To meet aircraft manufacturers’ stringent requirements on damage tolerance and damage visibility after impact events such as bird strikes or hail, Evonik Industries has introduced a structural foam core for sandwich components called Rohacell Hero.
Impact tests have confirmed the required damage visibility for hailstones, runway debris or tool drops with impact energies of up to 35 Joule. The Rohacell Hero’s closed-cell r foam leaves the damaged area impermeable because it spreads the damage.
