TY - JOUR
T1 - Spatial bandwidth enlargement and field enhancement of shear horizontal waves in finite graded piezoelectric layered media
AU - Xu, Yanlong
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2015/9
Y1 - 2015/9
N2 - Shear horizontal (SH) wave propagation in finite graded piezoelectric layered media is investigated by transfer matrix method. Different from the previous studies on SH wave propagation in completely periodic layered media, calculations on band structure and transmission in this paper show that the graded layered media possess very large band gaps. Harmonic wave simulation by finite element method (FEM) confirms that the reason of bandwidth enlargement is that waves within the band gap ranges are spatially enhanced and stopped by the corresponding graded units. The study suggests that the graded structure possesses the property of manipulating elastic waves spatially, which shows potential applications in strengthening energy trapping and harvesting. © 2015.
AB - Shear horizontal (SH) wave propagation in finite graded piezoelectric layered media is investigated by transfer matrix method. Different from the previous studies on SH wave propagation in completely periodic layered media, calculations on band structure and transmission in this paper show that the graded layered media possess very large band gaps. Harmonic wave simulation by finite element method (FEM) confirms that the reason of bandwidth enlargement is that waves within the band gap ranges are spatially enhanced and stopped by the corresponding graded units. The study suggests that the graded structure possesses the property of manipulating elastic waves spatially, which shows potential applications in strengthening energy trapping and harvesting. © 2015.
UR - http://hdl.handle.net/10754/594202
UR - https://linkinghub.elsevier.com/retrieve/pii/S0375960115003321
UR - http://www.scopus.com/inward/record.url?scp=84937757894&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2015.04.005
DO - 10.1016/j.physleta.2015.04.005
M3 - Article
SN - 0375-9601
VL - 379
SP - 1752
EP - 1756
JO - Physics Letters A
JF - Physics Letters A
IS - 30-31
ER -