Research on band structure of elastic shear waves in 2D phononic crystal with square-like Archimedean lattices - 文章详情页

作者：

Zhao, Huan-Yu (Zhao, Huan-Yu.) | He, Cun-Fu (He, Cun-Fu.) (学者：何存富) | Wei, Rui-Ju (Wei, Rui-Ju.) | Wu, Bin (Wu, Bin.)

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摘要：

The　propagation　of　elastic　shear　waves　in　two-dimensional　(2D)　phononic　crystals　with　square-like　Archimedean　lattices　consisting　of　ladybug　and　bathroom　lattices　arrays　of　circular　aluminum　rods　in　epoxy　was　investigated　using　plane　wave　expansion　method.　Compared　with　square　lattice,　it　is　found　that　square-like　Archimedean　lattices　have　some　band　gaps　in　higher　frequencies　and　the　wider　band　gaps　for　bathroom　lattice　in　the　range　of　higher　frequencies.　In　addition,　there　are　the　wider　band　gaps　of　isotropy　for　ladybug　lattice　in　lower　frequencies.　On　the　same　conditions,　the　effects　of　normalized　band　gap　width　and　ratio　of　scatter　radius　and　it＇s　the　nearest　distance　for　square-like　Archimedean　and　square　lattices　are　analyzed　in　detail.　The　results　show　that　square-like　Archimedean　lattices　can　obtain　easily　band　gaps　than　square　lattice.

关键词：

Crystal lattices Energy gap Expansion Phonons Shear flow Shear waves

作者机构：

[ 1 ] [Zhao, Huan-Yu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 2 ] [He, Cun-Fu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Wei, Rui-Ju]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

zhaohuanyu@emails.bjut.edu.cn

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