直径の異なる円柱軟体飛翔体を用いたAl合金およびCFRP平板への高速衝突解析

抄録

Bird strikes, that is, collisions between aircraft and birds, are critical events that can severely damage aircraft. Although fundamental studies on bird strikes have typically used gelatin projectiles, birds differ in terms of volume and density due to their species and individual differences. Accordingly, in this study, impact simulations on a cantilevered aluminum alloy plate and a carbon fiber-reinforced polymer (CFRP) plate designed to mimic a fan blade were conducted. Cylindrical gelatin projectiles of various diameters and investigated how the different diameters of these gelatin projectiles affect the deformation of the aluminum alloy plate and the delamination of the CFRP plate were used. In addition, the deformation of the aluminum alloy plate and the damage behavior of the CFRP plate upon impact with a cylindrical soft body were examined. Finally, the evaluation method for assessing damage on the CFRP plate was examined.