2.2.5. Influence of specimen curvature on the shock resistance

The influence of curvature is deduced primarily from Figure 10. Two major influences can be identified: (i) the blast resistance of single-curvature sandwich panels with the larger radius of curvature is better, and (ii) a comparison between the response of the curved sandwich panels and the solid shell counterparts with the same mass is made, as stated in Section 2.2.2. Obviously, the deformation of curved sandwich panels with the smaller radius of curvature is governed by local penetration failure, while the deformation of the larger radius of curvature specimens is the global deformation with bending and stretching dominants. The larger deformation zone of the latter appears to contribute the greater plastic energy absorption and thus enhances the resistance to blast loading.
