ABSTRACT
Dynamic crushing behaviors of cellular materials have been extensively studied due to the excellent mechanical properties in energy absorption (Lu & Yu 2003). Deformation localization and strength enhancement have been observed in cellular materials under dynamic impact. The conception of “structural shock” was proposed by Reid & Peng (1997) to describe the shock-like propagation of deformation. The propagation of shock wave in irregular honeycombs under dynamic impact was studied by Zheng et al. (2005) and the shock wave speed was estimated from observing the change of the location of shock front by Liu et al. (2009).
