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Investigation of composite repair method by liquid resin infiltration

By M. Hautier, D. Lévêque, C. Huchette and Philippe Olivier

Abstract

International audience'Conventional' or certified repair procedures for impacted composite structures (i.e. patches) are time consuming, and must be performed by highly qualified staff. In this paper, a cost effective and simple repair method by liquid resin infiltration is studied. As damages on aircraft structures are generally due to impact, this kind of damage is characterised and compared to quasi-static indentation with ultrasonic inspection and micrographic cuts. The repair by liquid resin is used to fill in the very special damage pattern region organised as a crack network (delamination and transverse cracks). In order to study this new repair method, an experimental set-up has been manufactured and different configurations have been studied. Mechanical testing (CAI, DCB and ENF) was then performed to evaluate the strength of this repair. As good results were achieved, further exploration under complex loading should be performed to ensure the quality of the repair for an industrial application

Topics: COMPOSITE REPAIR, CRACK, DELAMINATION, IMPACT DAMAGE, LIQUID RESIN INFUSION, [PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph]
Publisher: 'Maney Publishing'
Year: 2010
DOI identifier: 10.1179/174328910X12647080902411
OAI identifier: oai:HAL:hal-02193167v1
Provided by: HAL-INSA Toulouse
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