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The manufacturing procedure for aerospace secondary sandwich structure panels

Crump, Duncan A., Dulieu-Barton, Janice M. and Savage, John (2010) The manufacturing procedure for aerospace secondary sandwich structure panels Journal of Sandwich Structures and Materials, 12, pp. 421-427. (doi:10.1177/1099636209104531).

Record type: Article


This study provides a detailed consideration of five manufacturing
options that are used to produce aerospace sandwich panels used in secondary
structure. The structural performance of each of the manufacturing options is
considered along with a cost analysis. By considering the traditional preimpregnated
(prepreg), autoclave-cured process, the sources of cost have been investigated, and it
has been shown that by removing a portion of the large labor content and the
autoclave cure, in favor of an oven-only cure, it would be possible to make
significant savings. Monitoring the time to manufacture representative full-scale
sandwich panels using the five manufacturing options has shown that by using a
resin film infusion (RFI) oven cure, a 30% reduction in time to production is possible.
To make an initial assessment of the comparative structural performance of
laminates produced using the five manufacturing options, this article also presents
results of material quality, in-plane and out-of-plane loading tests. The results of
these tests show that the laminates produced using RFI are comparable in quality
and performance to laminates produced using the current aerospace industry
standard prepreg/autoclave process.

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More information

Published date: July 2010
Keywords: manufacture, aerospace sandwich structure, RFI, cost analysis
Organisations: Fluid Structure Interactions Group


Local EPrints ID: 68667
ISSN: 1530-7972
PURE UUID: 77a4ca06-e4a9-4b9d-863f-c89422e44372

Catalogue record

Date deposited: 14 Sep 2009
Last modified: 19 Jul 2017 00:17

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