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    Damage in single lap joints of woven fabric reinforced polymeric composites subjected to transverse impact loading

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    RSC-IJIE-2014-15-reviewed.pdf
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    Authors
    Choudhry, Rizwan Saeed cc
    Hassan, Syed F.
    Li, Shuguang
    Day, Richard
    Affiliation
    National University of Sciences and Technology
    University of Manchester
    University of Nottingham
    Glyndŵr University
    Issue Date
    2015-02-16
    
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    Abstract
    Single lap joints of woven glass fabric reinforced phenolic composites, having four different overlap widths, were impacted transversely using a hemispherical impactor with different velocities in the low velocity impact range. The resulting damage was observed at various length scales (from micro to macro) using transmission photography, ultrasonic c-scan and x-ray micro tomography (XMT), in support of each other. These experimental observations were used for classification of damage in terms of damage scale, location (i.e. ply, interfaces between plies or bond failure between the two adherends) and mechanisms, with changing overlap width and impact velocity. In addition, finite element analysis was used to simulate delamination and disbond failure. These simulations were used to further explain the observed dependence of damage on overlap width and impact velocity. The results from these experiments and simulations lead to the proposal of a concept of lower and upper characteristic overlap width. These bounds relate the dominant damage pattern (i.e. scale, location and mechanism) with overlap width of the joint for a given impact velocity range.
    Citation
    Choudhry, R. S. et al (2015) 'Damage in single lap joints of woven fabric reinforced polymeric composites subjected to transverse impact loading', International Journal of Impact Engineering, 80:76 .
    Publisher
    Elsevier
    Journal
    International Journal of Impact Engineering
    URI
    http://hdl.handle.net/10545/621998
    DOI
    10.1016/j.ijimpeng.2015.02.003
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S0734743X15000196
    Type
    Article
    Language
    en
    ISSN
    0734743X
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.ijimpeng.2015.02.003
    Scopus Count
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    Department of Mechanical Engineering & the Built Environment

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