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The effects of point defects on transmission coefficients in two-dimensional piezoelectric phononic crystals
  • ISSN号：0894-9166
  • 期刊名称：《固体力学学报：英文版》
  • 时间：0
  • 分类：V23[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术]
  • 作者机构：[1]School of Astronautics, Harbin Institute of Technology, Harbin 150001, China, [2]Dept. of Mechanical Sciences and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan, [3]School of Mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China, [4]Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China
  • 相关基金：Sponsored by the National Natural Science Foundation of China（ Grant No. 10672017 and 10632020）, the China Postdoctoral Science Foundation, Heilongjiang Province Postdoctoral Science Foundation and Japan Society for the Promotion of Science （JSPS）.
作者： 李金强[1], 李凤明[1,2], 岸本喜久雄[2], 陈照波[3], 汪越胜[4]
中文摘要：

Based on finite-difference time-domain(FDTD) method,the wave propagation and localization in two-dimensional defect-containing piezoelectric phononic crystals are investigated when the mechanical-electrical coupling is taken into account.The characteristics of localized defect modes are studied,and the effects of the number and direction of defects on the defect modes and transmission coefficients are discussed.Numerical results of defect modes and transmission coefficients are presented for BaTiO3/polymer piezocomposite,and from which we can see that the number and direction of defects have pronounced effects on the defect modes and transmission coefficients.The results also show the existence of elastic wave localization in piezoelectric phononic crystals containing defects.

英文摘要：

Based on finite-difference time-domain （FDTD） method, the wave propagation and localization in two-dimensional defect-containing piezoelectric phononic crystals are investigated when the mechanical-electrical coupling is taken into account. The characteristics of localized defect modes are studied, and the effects of the number and direction of defects on the defect modes and transmission coefficients are discussed. Numerical results of defect modes and transmission coefficients are presented for BaTiO3/polymer piezocomposite, and from which we can see that the number and direction of defects have pronounced effects on the defect modes and transmission coefficients. The results also show the existence of elastic wave localization in piezoelectric phononic crystals containing defects.

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期刊信息
  • 《固体力学学报：英文版》
  • 主管单位:
  • 主办单位:中国力学学会
  • 主编：郑泉水
  • 地址：武汉市珞喻路1037号华中科技大学南一楼西北508室
  • 邮编：430074
  • 邮箱：amss@mail.hust.edu.cn
  • 电话：027-87543737
  • 国际标准刊号：ISSN：0894-9166
  • 国内统一刊号：ISSN：42-1121/O3
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:133