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    The mechanical properties of Polyvinyl Butyral (PVB) at high strain rates

    232560_232560.pdf (2.460Mb)
    Access Status
    Open access
    Authors
    Zhang, Xihong
    Hao, Hong
    Shi, Y.
    Cui, J.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhang, X. and Hao, H. and Shi, Y. and Cui, J. 2015. The mechanical properties of Polyvinyl Butyral (PVB) at high strain rates. Construction and Building Materials. 93: pp. 404-415.
    Source Title
    Construction and Building Materials
    DOI
    10.1016/j.conbuildmat.2015.04.057
    ISSN
    0950-0618
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/29770
    Collection
    • Curtin Research Publications
    Abstract

    Polyvinyl Butyral (PVB) has been largely used as an interlayer material for laminated glass to mitigate the hazard from shattered glass fragments, due to its excellent ductility and adhesive property with glass pane. With increasing threats from terrorist bombing and debris impact, the application of PVB laminated safety glass has been extended from quasi-static loading to impact and blast loading regimes, which has led to the requirement for a better understanding of PVB material properties at high strain rates. In this study, the mechanical properties of PVB are investigated experimentally over a wide range of strain rates. Firstly, quasi-static tensile tests is performed using conventional hydraulic machine at strain rates of 0.008–0.317 s−1. Then high-speed tensile test is carried out using a high-speed servo-hydraulic testing machine at strain rates from 8.7 s−1 to 1360 s−1. It is found that under quasi-static tensile loading, PVB behaves as a hyperelastic material and material property is influenced by loading rate. Under dynamic loading the response of PVB is characterized by a time-dependent nonlinear elastic behavior. The ductility of PVB reduces as strain rate increases. The testing results are consistent with available testing data on PVB material at various strain rates. Analysis is made on the testing data to form strain-rate dependent stress–strain curves of PVB under tension.

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