Paper Title:
The Influence of Processing Parameters on the Void Content and Compressive Strength of Carbon Fibre-Epoxy Laminates
  Abstract

This research addresses the influence of various processing parameters on the post cure quality of carbon fibre composites. Four processing parameters were investigated in the study, in terms of their impact on void content and overall compressive strength. The first parameter distinguishes between laminates cured in a vacuum oven and those cured in an autoclave under high positive pressure. The second parameter describes the impact on voids of differing fibre architectures, comparing a unidirectional fibre structure to that of woven cloth. Thirdly, the influence of compaction during manufacture is analysed and lastly, variation in cure temperature was tested to determine its effect on final laminate quality. The quality of the cured laminate samples was assessed from visual inspection, and in terms of compressive strength and void fraction calculated by Micro-CT X-ray Tomography. The results show that autoclave-cured samples feature significant quality improvements in terms of void fraction and compressive strength when compared to oven-cured samples. Unidirectional laminates incur higher sensitivity to void inclusion than cloth laminates due to the influence of fibre wrinkling. Compaction has no effect on laminate strength; it does however reduce variability in certain cases. Temperature affects different fibre structures in different ways, these being highly dependent on curing method. Finally, it was discerned that curing by autoclave was the dominant processing parameter. Thus, regardless of other manufacturing techniques, the autoclave samples featured almost zero voids and were consequently of the highest quality.

  Info
Periodical
Edited by
George Ferguson, Ashvin Thambyah, Michael A Hodgson and Kelly Wade
Pages
243-246
DOI
10.4028/www.scientific.net/AMR.275.243
Citation
X. W. Yuan, S. Bickerton, S. Bradley, A. Tapiheroe, J. Little, "The Influence of Processing Parameters on the Void Content and Compressive Strength of Carbon Fibre-Epoxy Laminates", Advanced Materials Research, Vol. 275, pp. 243-246, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Soo Hyun Eum, Yun Hae Kim, Joong Won Han, Kook Jin Kim, Do Hoon Shin, Cheolmun Yim, Riichi Murakami
Abstract:To prove the suitability the honeycomb composites structure with VARTM, the mechanical properties of the skin materials and honeycomb...
2746
Authors: Leon W. Davies, Richard J. Day, David Bond, Alan Nesbitt, John Ellis, Emilie Gardon
Abstract:Although the autoclave technique produces composite parts of high quality, the process is time consuming and has intrinsically high capital...
545
Authors: Babak Ganjeh, Mohd Roshdi Hassan
Chapter 12: Manufacturing and Industrial Engineering, Management Applications
Abstract:Composite materials have been used in aircraft components since the early beginning of aircraft industry establishment.Undenaible advantages...
1465
Authors: Yong An Zhang, Li Hua Zhan
Chapter 1: Materials and Technologies of Materials Processing in Mechanical Engineering
Abstract:The strain in curing process of composite part would be influenced by curing compaction, resin flow, curing action and tool-part interaction,...
3