The elastic and damping properties of magnetorheological elastomers

Marke Kallio, Tomi Lindroos, Samu Aalto

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    2 Citations (Scopus)

    Abstract

    The aim of this study was to increase knowledge of the mechanical and viscoelastic properties of isotropic and aligned MREs.The focus was to clarify the changes in the elastic and vibration damping properties of the MREs when they are subjected to a magnetic field and to study the influence of the alignment of the magnetic particles on the composite properties with and without an applied magnetic field.The stiffness and damping properties of MREs can be modified by applying an external magnetic field.In isotropic MREs the stiffness and damping increase in the magnetic field when the filler volume fraction exceeds 15 vol.-% and maximal damping is obtained with 27 vol.-% of filler.The damping and stiffness properties of aligned MREs depend on the mutual directions of load, magnetic field and the particle alignment in the composite.If the dynamic loading is applied in the direction of the particle chains, the damping is initially high and the applied magnetic field has only a small influence on damping but it increases dynamic stiffness.If the deformation is concentrated in the areas between the particle chains, the damping is initially lower and is increased in the magnetic field.In this case, the dynamic stiffness is quite low and the applied magnetic field does not increase it significantly.
    Original languageEnglish
    Title of host publicationApplied Material Research at VTT
    Subtitle of host publicationSymposium on Applied Materials
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages110-120
    ISBN (Electronic)951-38-6312-3
    ISBN (Print)951-38-6311-5
    Publication statusPublished - 2006
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventInternal Symposium on Applied Materials - Espoo, Finland
    Duration: 8 Jun 20068 Jun 2006

    Publication series

    SeriesVTT Symposium
    Number244
    ISSN0357-9387

    Conference

    ConferenceInternal Symposium on Applied Materials
    CountryFinland
    CityEspoo
    Period8/06/068/06/06

      Fingerprint

    Cite this

    Kallio, M., Lindroos, T., & Aalto, S. (2006). The elastic and damping properties of magnetorheological elastomers. In Applied Material Research at VTT: Symposium on Applied Materials (pp. 110-120). VTT Technical Research Centre of Finland. VTT Symposium, No. 244