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    Using an embedded Buckypaper to monitor mode I crack growth in bonded joints

    Identifiers
    URI: http://hdl.handle.net/11556/1036
    ISSN: 0021-8464
    DOI: 10.1080/00218464.2020.1842206
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    Author/s
    Gaztelumendi, Idoia; Villaverde, H.; Pérez, B.; Chapartegui, M.; Flórez, S.; [et al.]
    Date
    2020
    Keywords
    Adhesive
    CNT
    Buckypaper
    Sensing
    SHM
    Abstract
    Structural Health Monitoring (SHM) systems are commonly integrated in bonded joints for different applications in order to detect and predict potential fatigue and damages caused by internal and external agents they are subjected to during their operation life. However, each of the current SHM systems presents some drawbacks, as the reduction of structural properties or the difficulty in its implementation. This work deals with the use of a Carbon Nanotube film (Bukypaper) as a sensor in double cantilever beam (DCB) bonded joint specimens for crack growth monitoring purposes. Buckypaper (BP) sheets were manufactured and integrated in adhesive film layers and its integration quality was studied by Scanning Electron Microscopy (SEM). The effect of the integration of different thickness BPs in the mechanical performance of the bonded joints was also assessed performing DCB fracture tests. Also, electro-mechanical tests were conducted using the BP as the sensor, monitoring the output in the ...
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    article

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