Experimental study on effect of loading rate on mode I delamination of z-pin reinforced laminates

Liu, Hong-Yuan, Yan, Wenyi, Yu, Xiao-Yan and Mai, Yiu-Wing 2007, Experimental study on effect of loading rate on mode I delamination of z-pin reinforced laminates, Composites science and technology, vol. 67, no. 7-8, pp. 1294-1301.

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Title Experimental study on effect of loading rate on mode I delamination of z-pin reinforced laminates
Author(s) Liu, Hong-Yuan
Yan, Wenyi
Yu, Xiao-Yan
Mai, Yiu-Wing
Journal name Composites science and technology
Volume number 67
Issue number 7-8
Start page 1294
End page 1301
Publisher Pergamon
Place of publication Oxford, England
Publication date 2007-06
ISSN 0266-3538
1879-1050
Keyword(s) z-pin reinforcement
z-pin bridging law
DCB mode I delamination
loading rate
Summary This paper presents an experimental investigation on mode I delamination of z-pinned double-cantilever-beams (DCB) and associate z-pin bridging mechanisms. Tests were performed with three types of samples: big-pin with an areal density of 2%, small-pin with an areal density of 2% and small-pin with an areal density of 0.5%. The loading rates for each type of samples were set at 1 mm/min and 100 mm/min. Comparison of fracture load under different loading rates shows the rate effects on delamination crack opening and delamination growth. Optical micrographs of z-pins after pullout were also presented to identify the bridging mechanisms of z-pins under different loading rates.
Language eng
Field of Research 091202 Composite and Hybrid Materials
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, Elsevier Ltd
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007124

Document type: Journal Article
Collection: School of Engineering and Information Technology
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