000177379 001__ 177379
000177379 005__ 20180913061253.0
000177379 0247_ $$2doi$$a10.1016/j.jclepro.2012.02.028
000177379 022__ $$a0959-6526
000177379 02470 $$2ISI$$a000303305600011
000177379 037__ $$aARTICLE
000177379 245__ $$aEconomic and environmental assessment of alternative production methods for composite aircraft components
000177379 260__ $$bElsevier$$c2012
000177379 269__ $$a2012
000177379 336__ $$aJournal Articles
000177379 520__ $$aThe use of carbon fibre reinforced plastics is steadily increasing in the aerospace industry as rising fuel costs and concerns over the environment push airframe manufacturers to improve aircraft efficiency. The high costs associated with manufacturing carbon fibre reinforced components in autoclaves have prompted interest in alternative out-of-autoclave processing methods. In this study a combined cost modelling and life-cycle assessment approach is applied to selected out-of-autoclave production scenarios. Out-of-autoclave specific "prepregs" and resin infused fabrics are cured in thermal and microwave ovens of comparable volume and assessed against a benchmark autoclave scenario. Results showed that materials, in particular carbon fibres, contributed most significantly to component cost and environmental impacts. Resin infusion processes were effective at reducing costs, as reinforcement fabrics and resin were less expensive. Due to the small contribution of energy to total cost, reductions in energy use did not lead to significant savings, although they did improve the environmental performance of the manufacturing process. Out-of-autoclave specific prepregs did not perform as well due to their higher costs, longer associated cycle times and the need for lengthy de-bulking operations. Microwave oven curing offered little in terms of cost reduction and environmental improvement as investment costs were comparable to those of an autoclave, and energy consumption was relatively high compared with traditional thermal oven use. Opportunities for improvement exist if investment costs can be reduced and additional work carried out to promote more efficient transfer of energy. Improvement of the carbon fibre production process would be the most effective approach for reducing impacts and costs from carbon fibre components. (C) 2012 Elsevier Ltd. All rights reserved.
000177379 6531_ $$aComposites
000177379 6531_ $$aLife-cycle assessment
000177379 6531_ $$aCost modelling
000177379 6531_ $$aAeronautics
000177379 6531_ $$aResin Infusion
000177379 6531_ $$aCycle
000177379 6531_ $$aTechnology
000177379 6531_ $$aSelection
000177379 700__ $$0242101$$aWitik, Robert A.$$g176715
000177379 700__ $$aGaille, Fabrice
000177379 700__ $$aTeuscher, Remy
000177379 700__ $$aRingwald, Heike
000177379 700__ $$0240384$$aMichaud, Veronique$$g113157
000177379 700__ $$0241291$$aManson, Jan-Anders E.$$g105745
000177379 773__ $$j29-30$$q91-102$$tJournal Of Cleaner Production
000177379 909C0 $$0252013$$pLTC$$xU10339
000177379 909CO $$ooai:infoscience.tind.io:177379$$particle
000177379 917Z8 $$x105657
000177379 937__ $$aEPFL-ARTICLE-177379
000177379 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000177379 980__ $$aARTICLE