Acta Mechanica Solida Sinica

, Volume 30, Issue 4, pp 390–403 | Cite as

Band structures of elastic SH waves in nanoscale multi-layered functionally graded phononic crystals with/without nonlocal interface imperfections by using a local RBF collocation method

Article

Abstract

A meshless radial basis function (RBF) collocation method based on the Eringen nonlocal elasticity theory is developed to calculate the band structures of ternary and quaternary nanoscale multi-layered phononic crystals (PNCs) with functionally graded (FG) interlayers. Detailed calculations are performed for anti-plane transverse waves propagating in such PNCs. The influences of FG and homogeneous interlayers, component number, nonlocal interface imperfections and nanoscale size on cut-off frequency and band structures are investigated in detail. Numerical results show that these factors have significant effects on band structures at the macroscopic and microscopic scales.

Keywords

Multi-layered phononic crystals Functionally graded interlayers Nanoscale Nonlocal elasticity theory Radial basis functions 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2017

Authors and Affiliations

  1. 1.School of Mathematics and StatisticsBeijing Institute of TechnologyBeijingChina
  2. 2.Beijing Key Laboratory on MCAACIBeijing Institute of TechnologyBeijingChina
  3. 3.Chair of Structural Mechanics, Department of Civil EngineeringUniversity of SiegenSiegenGermany

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