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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Affiliation
National University of Sciences and TechnologyUniversity of Manchester
University of Nottingham
Glyndŵr University
Issue Date
2015-02-16
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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
ElsevierJournal
International Journal of Impact EngineeringDOI
10.1016/j.ijimpeng.2015.02.003Additional Links
http://linkinghub.elsevier.com/retrieve/pii/S0734743X15000196Type
ArticleLanguage
enISSN
0734743Xae974a485f413a2113503eed53cd6c53
10.1016/j.ijimpeng.2015.02.003