Search of Phononic Crystal Band-Gap about the Array of 2D square tube with slits

Longgen Li; Yonggang Chen
May 2014
Applied Mechanics & Materials;2014, Issue 536-537, p1481
Academic Journal
A band structure composed of a square array of parallel steel tube with narrow slits is presented.The propagation characteristic of acoustic waves in this structure is investigated theoretically by the finite element method. In particular the acoustic-solid coupling is taken into account for accurate results. The transmission coefficients of the band system with different angles of the square tubes and slits width are calculated. A large continuous band gap at a low frequency range in a compound structure is obtained due to the interaction of peaks and gaps fordifferent Structural parameters.


Related Articles

  • Regulating elastic bandgaps in two-dimensional lattice grid by periodical cut-off operations. Zhang, Yan; Han, Lin; Li, Xiao‐Mei; Jiang, Lin‐Hua; Chen, Da // Physica Status Solidi (B);Mar2016, Vol. 253 Issue 3, p566 

    From periodically cutting off rods in two-dimensional lattice grids, we find an easy and feasible way to control elastic bandgaps (BGs) in them. Due to the periodical cut-off (PCO) operations, the exposed cantilevers lose the static load-supporting ability; however, their mass distribution and...

  • Elastic wave propagation in moving phononic crystals and correlations with stationary spatiotemporally modulated systems. Attarzadeh, M. A.; Nouh, M. // AIP Advances;Oct2018, Vol. 8 Issue 10, pN.PAG 

    This work presents a generalized physical interpretation of unconventional dispersion asymmetries associated with moving phononic crystals (PCs). By shifting the notion from systems with time-variant material fields to physically traveling materials, the newly adopted paradigm provides a novel...

  • Investigation of quasi-one-dimensional finite phononic crystal with conical section. FU, ZHIQIANG; LIN, SHUYU; CHEN, SHI; XIAN, XIAOJUN; WANG, CHENGHUI // Pramana: Journal of Physics;Dec2014, Vol. 83 Issue 6, p1003 

    In this paper, we studied the propagation of elastic longitudinal waves in quasi-one-dimensional (1D) finite phononic crystal with conical section, and derived expressions of frequency-response functions. It is found that, contrary to the 1D phononic crystal with a constant section, the value of...

  • Surface acoustic waves in pillars-based two-dimensional phononic structures with different lattice symmetries. Khelif, Abdelkrim; Achaoui, Younes; Aoubiza, Boujemaa // Journal of Applied Physics;Aug2012, Vol. 112 Issue 3, p033511 

    The theoretical study deals with the propagation of surface acoustic waves in two-dimensional arrays of resonant elements with different symmetry lattices. The resonant elements are cylindrical pillars on the surface of a semi-infinite substrate. The obtained band structures show the interaction...

  • Elastic wave radiation and scattering in heterogeneous soil using the scaled boundary finite element method. Birk, Carolin; Gravenkamp, Hauke; Bazyar, Mohammad Hossein // PAMM: Proceedings in Applied Mathematics & Mechanics;Dec2017, Vol. 17 Issue 1, p671 

    Abstract: A time‐domain approach for the simulation of elastic waves in heterogeneous soil domains is presented. It is based on modelling both near and far field by the scaled boundary finite element method (SBFEM). The SBFEM facilitates the use of a structured mesh in the near field...

  • Classical and generalized coupled thermoelasticity analysis in one-dimensional layered media. Hosseini Zad, S.; Komeili, A.; Eslami, M.; Fariborz, S. // Archive of Applied Mechanics;Feb2012, Vol. 82 Issue 2, p267 

    The behavior of thermoelastic waves at the interface of layered medium and distributions of these waves through the domain are examined by applying the direct finite element method to obtain the field variables directly within the spatial and temporal domains. The analysis is performed in a...

  • Derivation of Analytical Closed Expression for the Normalized Propagation Constant of the Multimode Buried Rectangular Optical Waveguide. Zaghloul, Adel // International Journal of Future Generation Communication & Netwo;Aug2013, Vol. 6 Issue 4, p25 

    Simple theoretical closed algebraic expressions are derived with Hermite-Gauss trial function. These obtained expressions for the normalized propagation constant, the cut-off frequency and the field width of the slab and rectangular optical waveguides. They are shown to have reasonably good...

  • Finite Element Analysis with Paraxial & Viscous Boundary Conditions for Elastic Wave Propagation. Hee Seok Kim // Engineering;Dec2012, Vol. 4 Issue 12, p843 

    In this study, two studies are performed. One is to apply paraxial boundary conditions which are local boundary conditions based on paraxial approximations of the one-way wave equations to finite element analysis. To do this, a penalty functional is proposed and the existence and uniqueness of...

  • Highly Nonlinear Bending-Insensitive Birefringent Photonic Crystal Fibres. Huseyin Ademgil; Shyqyri Haxha; Malek, Fathi Abdel // Engineering;Aug2010, Vol. 2 Issue 8, p608 

    Highly nonlinear birefringent Photonic Crystal Fibre (PCF) that exhibits low losses and small effective mode area across a wide wavelength range has been presented. The effects of angular orientation on bending losses of the proposed PCFs have been thoroughly investigated by employing a full...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics