We study the low frequency wave propagation behavior of sandwich beams containing periodically embedded internal resonators. A closed form expression for the propagation constant is obtained using a phased array approach and verified using finite element simulations. We show that local resonance and Bragg bandgaps coexist in such a system and that the width of both bandgaps is a function of resonator parameters as well as their periodicity. The interaction between the two bandgaps is studied by varying the local resonance frequency. We find that a single combined bandgap does not exist for this system and that the Bragg bandgaps transition into sub-wavelength bandgaps when the local resonance frequency is above their associated classical Bragg frequency.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Local resonance and Bragg bandgaps in sandwich beams containing periodically inserted resonators


    Contributors:


    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    33.12 Akustik / 50.36 Technische Akustik / 53.79 Elektroakustik, Tonstudiotechnik / 50.32 Dynamik, Schwingungslehre / 58.56 Lärmschutz, Erschütterungsdämpfung
    Local classification TIB:    275/3425




    Novel Low-Loss Bandgaps in All-Silica Bragg Fibers

    Rowland, K.J. / Afshar V., S. / Monro, T.M. | British Library Online Contents | 2008


    Novel Low-Loss Bandgaps in All-Silica Bragg Fibers

    Rowland, K.J. / Afshar, V.S. / Monro, T.M. | British Library Online Contents | 2008


    Holographic Bragg Reflectors, Photonic Bandgaps and Photonic Integrated Circuits

    Mossberg, T. W. / Greiner, C. M. / Iazikov, D. | British Library Online Contents | 2004


    Novel Low-Loss Bandgaps in All-Silica Bragg Fibers

    Rowland, K.J. / Afshar V., S. / Monro, T.M. | British Library Online Contents | 2008