Indentation, Penetration and Perforation of Composite Laminates and Sandwich Panels under Quasi-Static and Projectile Loading

摘要

The results of penetration and perforation tests carried out on composite laminates and sandwich panels using flat-faced, hemispherical-ended and conical-nosed indenters/projectiles under quasi-static, drop-weight and ballistic impact conditions with impact velocities up to 305m/s are reported. Load- displacement characteristics under quasi-static loading are presented and the energies corresponding to different degrees of damage are calculated. Fracture patterns observed in sandwich panels loaded dynamically are compared with those observed in identical panels under quasi-static loading.