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    Structural health monitoring of an asymmetrical SMA reinforced composite using embedded FBG sensors

    193828_193828.pdf (2.154Mb)
    Access Status
    Open access
    Authors
    Ho, M.
    Lau, K.
    Au, H.
    Dong, Yu
    Tam, H.
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Ho, Mei-po and Lau, Kin-tak and Au, Ho-yin and Dong, Yu and Tam, Hwa-yaw. 2013. Structural health monitoring of an asymmetrical SMA reinforced composite using embedded FBG sensors. Smart Materials and Structures. 22 (12): 125015 (11 pp.).
    Source Title
    Smart Materials and Structures
    DOI
    10.1088/0964-1726/22/12/125015
    ISSN
    0964-1726
    Remarks

    This is an author-created, un-copy edited version of an article accepted for publication in Smart Materials and Structures. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://doi.org/10.1088/0964-1726/22/12/125015

    URI
    http://hdl.handle.net/20.500.11937/20672
    Collection
    • Curtin Research Publications
    Abstract

    Embedded actuator and sensor technology provides accurate structural health monitoring and proper structural response of a structure at any harsh servicing situation. This paper describes the fabrication of a smart composite by embedding shape memory alloy (SMA) wires and fibre Bragg grating (FBG) sensors into a glass fabric reinforced polymeric composite. Mechanical performances of the composite under martensitic and austenitic stages of the SMA wires were studied, and its natural frequencies were also measured accordingly. The result shows that the shift of the natural frequency arises from temperature change, thus changing the mechanical properties of the SMA wires. The changes of strain, stress, curvature and damping ratio were predicted from an asymmetrical lamination model. It has found that this model demonstrates certain attractive effects including the mechanical properties, the change of shape and the natural frequency upon activation of the SMA wires.

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