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Experimental investigation of a method to avoid channel marks during vacuum infusion

Hindersmann, Arne (2019) Experimental investigation of a method to avoid channel marks during vacuum infusion. Journal of Composite Materials. Sage Publications. doi: 10.1177/0021998319889120. ISSN 0021-9983.

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Today the impregnation of dry fibre materials is a production method referred for large composite parts like wind turbine rotor blades or aircraft wing covers. One of the recurring problems of the production process is that the used resin distribution channels leave marks on the surface of the part. The result of the marks in the channel area is a localized deformation of the fibre material, and hence the laminate becomes more prone to shear buckling in this area. The purpose of this paper is to present a report on an unconventional infusion method to avoid channel marks on composite part’s surfaces. The channels can be activated by a pressure difference. If the channels are deactivated during a specific process window no channel marks will be left on the part’s surface. In order to verify the inexistence of channel marks, three analytical processes are used.

Item URL in elib:https://elib.dlr.de/130810/
Document Type:Article
Title:Experimental investigation of a method to avoid channel marks during vacuum infusion
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hindersmann, ArneArne.Hindersmann (at) dlr.dehttps://orcid.org/0000-0001-5060-8776
Date:25 November 2019
Journal or Publication Title:Journal of Composite Materials
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1177/0021998319889120
Publisher:Sage Publications
Keywords:Vacuum infusion, markless channels, fibre undulation, liquid composite moulding
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old), E - Wind Energy (old)
Location: Stade
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Composite Process Technology
Deposited By: Hindersmann, Arne
Deposited On:07 Jan 2020 14:19
Last Modified:07 Jan 2020 14:19

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