...Zhiwei Zhu; Zichen Deng; Jianke Du This paper investigates the dispersion behavior of elastic wave propagation in hierarchical honeycombs using the finite element method in conjunction with the Bloch's theorem. The hierarchical honeycomb is constructed by replacing each vertex of a regular...

... porous materials. phononic crystal elastic wave band structure bandgap engineering resonator vibration Phononic crystals (PCs) [ 1 ], a special type of inhomogeneous material with periodic variations in their elastic properties, have attracted a rapidly growing interest in the past...

... June 6, 2013. Assoc. Editor: Mahmoud Hussein. 31 01 2012 19 10 2012 In this paper, localization phenomena of in-plane time-harmonic elastic waves propagating in layered phononic crystals (PNCs) with different fractal superlattices are studied. For this purpose, oblique wave...