In order to achieve a kind of composite material with both wave absorbing property and certain mechanical load bearing function, the metamaterial absorbers and sandwich composite were combined. By simulation, the metamaterial absorbers satisfying dual-band and broadband electromagnetic wave absorption were designed, and the wave absorbing performances were characterized. The aforementioned metamaterial absorbers were then integrated into the sandwich composite, in which the glass fiber/epoxy composite was used as the top layer, the PMI foam was used as the core layer, and the carbon fiber/epoxy composite was used as the bottom layer. The measured electromagnetic wave absorbing performance of the final sandwich composites shows that the dual-band composite has the absorptivity of 94.13% and 99.99% at the frequency of 8.65 GHz and 10.30 GHz respectively,while the broadband composite has the absorptivity of 90.02%-99.91% at 8.25-11.61 GHz frequency range. The bending test results exhibit that the dual-band composite has the bending strength and modulus of 68.81 MPa and 7.72 GPa, and the broadband composite has the bending strength of 145.76 MPa and modulus of 9.13 GPa. The SEM photos of after-fracture cross sections show that a small area of delamination can be observed and the overall laminates bonding performance is good.


    Access

    Download


    Export, share and cite



    Title :

    Design, fabrication and properties of sandwich composites with metamaterial absorbers integrated


    Contributors:
    RUAN Xinyi (author) / YANG Jiahua (author) / QIU Yiping (author) / YAO Lan (author)


    Publication date :

    2022




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Metamaterial Broadband Vibration Absorbers by Local Resonance

    Sun, H. / Du, X. / Pai, P.F. et al. | British Library Conference Proceedings | 2011


    Metamaterial Broadband Vibration Absorbers by Local Resonance

    Sun, Hongwei / Du, Xingwen / Pai, P Frank | AIAA | 2011


    Multilayer metamaterial absorbers inspired by perfectly matched layers

    Pastuszczak, A. / Stolarek, M. / Antosiewicz, T. J. et al. | British Library Online Contents | 2015


    Fabrication, Testing and Optimization of Sandwich Composites

    Walton, M. D. / Craff, W. J. | British Library Conference Proceedings | 1997


    Helical Metamaterial Absorbers: Broadband and Polarization-Independent in Optical Region

    Lu, Z. / Zhao, M. / Yang, Z. et al. | British Library Online Contents | 2013