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Materials 2011, 4(12), 2219-2230; doi:10.3390/ma4122219
Article

Novel Repair Concept for Composite Materials by Repetitive Geometrical Interlock Elements

1
, 1
, 1,* , 1
, 2
, 2
 and 2
1 Technische Universität Dresden, Institut für Leichtbau und Kunststofftechnik, Holbeinstr. 3, Dresden 01307, Germany 2 Leibniz Universität Hannover, Institut für Werkstoffkunde, An der Universität 2, Garbsen 30823, Germany
* Author to whom correspondence should be addressed.
Received: 1 November 2011 / Revised: 7 December 2011 / Accepted: 12 December 2011 / Published: 20 December 2011
(This article belongs to the Special Issue Fibre-Reinforced Composites)
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Abstract

Material adapted repair technologies for fiber-reinforced polymers with thermosetting matrix systems are currently characterized by requiring major efforts for repair preparation and accomplishment in all industrial areas of application. In order to allow for a uniform distribution of material and geometrical parameters over the repair zone, a novel composite interlock repair concept is introduced, which is based on a repair zone with undercuts prepared by water-jet technology. The presented numerical and experimental sensitivity analyses make a contribution to the systematic development of the interlock repair technology with respect to material and geometrical factors of influence. The results show the ability of the novel concept for a reproducible and automatable composite repair.
Keywords: composite repair; fiber-reinforced polymers; positive locking connection composite repair; fiber-reinforced polymers; positive locking connection
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Hufenbach, W.; Adam, F.; Heber, T.; Weckend, N.; Bach, F.-W.; Hassel, T.; Zaremba, D. Novel Repair Concept for Composite Materials by Repetitive Geometrical Interlock Elements. Materials 2011, 4, 2219-2230.

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