TY - JOUR
T1 - Wave propagation in hexagonal and re-entrant lattice structures with cell walls of non-uniform thickness
AU - Meng, Junmiao
AU - Deng, Zichen
AU - Zhang, Kai
AU - Xu, Xiaojian
N1 - Publisher Copyright:
© 2015 Taylor & Francis.
PY - 2015/4/3
Y1 - 2015/4/3
N2 - On the basis of the Blochs theorem, the in-plane wave propagation in hexagonal and re-entrant lattice structures with cell walls of non-uniform thickness is investigated using the dynamic stiffness matrix in conjunction with the Wittrick-Williams algorithm. Special attention is devoted to the effects of the internal angle, the slenderness ratio and the material distribution on the directional and band gap behaviors. Results show that the three considered parameters can significantly influence the band gap characteristics. For the wave propagation directionality, however, the internal angle is more prominent than the other two factors. The work expects to serve as a guide for the optimal design of directional mechanical filters.
AB - On the basis of the Blochs theorem, the in-plane wave propagation in hexagonal and re-entrant lattice structures with cell walls of non-uniform thickness is investigated using the dynamic stiffness matrix in conjunction with the Wittrick-Williams algorithm. Special attention is devoted to the effects of the internal angle, the slenderness ratio and the material distribution on the directional and band gap behaviors. Results show that the three considered parameters can significantly influence the band gap characteristics. For the wave propagation directionality, however, the internal angle is more prominent than the other two factors. The work expects to serve as a guide for the optimal design of directional mechanical filters.
UR - http://www.scopus.com/inward/record.url?scp=84933178052&partnerID=8YFLogxK
U2 - 10.1080/17455030.2015.1005195
DO - 10.1080/17455030.2015.1005195
M3 - 文章
AN - SCOPUS:84933178052
SN - 1745-5030
VL - 25
SP - 223
EP - 242
JO - Waves in Random and Complex Media
JF - Waves in Random and Complex Media
IS - 2
ER -