Failure Behaviour of Sandwich Beam Subjected to Projectile Impact
Aerodynamic gun impact test is carried out to investigate sandwich beam with metallic skin and Nomex honeycomb core damage mechanism and failure behaviour. Details of the deformation and damage progression within the sandwich beam are observed in particular. The comparisons between the two kinds of specimen with different thickness skins clearly show that the difference in the impact energy consumed in global bending deformation and the localized indentation. Theoretical elastic bending stiffness of the sandwich beam with thicker skins is approximately 2.26 times greater than that of sandwich beam with thinner skins.
Yanguo Shi and Jinlong Zuo
L. Q. Meng et al., "Failure Behaviour of Sandwich Beam Subjected to Projectile Impact", Advanced Materials Research, Vols. 183-185, pp. 2143-2147, 2011