Inspection of drop-weight impact damage in woven CFRP laminates fabricated by different processes

Zhang, J., Fox, B. L., Gao, D. and Stevenson, A. W. 2009, Inspection of drop-weight impact damage in woven CFRP laminates fabricated by different processes, Journal of composite materials, vol. 43, no. 19, pp. 1939-1946.

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Title Inspection of drop-weight impact damage in woven CFRP laminates fabricated by different processes
Author(s) Zhang, J.
Fox, B. L.
Gao, D.
Stevenson, A. W.
Journal name Journal of composite materials
Volume number 43
Issue number 19
Start page 1939
End page 1946
Total pages 8
Publisher Sage
Place of publication London, England
Publication date 2009-09
ISSN 0021-9983
1530-793X
Keyword(s) impact damage
X-radiography
Manufacturing
fast heating rate
Summary The influence of manufacturing process on the drop-weight impact damage in woven carbon/epoxy laminates was inspected by visual observation, dyepenetrant X-ray technique, and optical microscopy observation. The MTM56/ CF0300 woven quasi-isotropic laminates were fabricated by two processes: the autoclave and the Quickstep processes. QuickstepTM is a novel composite manufacturing process, which was designed for the out-of-autoclave production of high-quality composite parts at lower cost. It utilizes higher heat conduction of fluid other than gas to transfer heat to components, which results in much shorter cure cycles. The laminates cured by this fast heating process showed different impact failure modes from those cured by the conventional autoclave process. The residual indentation in the top side of the Quickstep-cured laminates had a bigger diameter, but a smaller depth at the same impact energy level. Dye-penetrant X-ray revealed more intense and connected impact damage regions in the autoclave-cured laminates. Optical micrography as a supplementary method showed less severe matrix damage in the quickstep-cured laminates indicating a more ductile property of the resin matrix cured at a faster heating rate.
Language eng
Field of Research 091202 Composite and Hybrid Materials
Socio Economic Objective 880399 Aerospace Transport not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2009, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30025536

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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