Fiber composite component assembly having at least two plate-shaped composite structures and processes for preparing same

Abstract

A fiber composite component assembly includes at least two plate-shaped composite structures which in each case are made from synthetic-resin embedded fibers and are integrally interconnected by way of an adhesive layer arranged in between, and additional mechanical reinforcement means, wherein the fiber composite components include several partial regions that do not contain synthetic resin, which partial regions can be brought to flush conformity with each other and which are arranged so as to be spaced apart from each other, through which partial regions the mechanical reinforcement means that can subsequently be bonded-in with synthetic resin have been passed.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of the filing date of U.S. Provisional Patent Application No. 61 / 568,689 filed Dec. 9, 2011, the disclosure of which is hereby incorporated herein by reference.TECHNICAL FIELD[0002]The invention relates to a fiber composite component assembly having at least two plate-shaped composite structures which in each case are made from synthetic-resin-embedded fibers and are integrally interconnected by way of an adhesive layer, arranged in-between, and additional mechanical reinforcement means. Furthermore, the invention also relates to a method for producing such a fiber composite component assembly.[0003]The field of application of the invention relates predominantly to aircraft construction. In particular in the production of structural components for aircraft fuselages and the like, plate-shaped fiber composite components can be used. Specifically, in this field carbon-fiber reinforced plastics (CFPs) are ...

AI Technical Summary

Benefits of technology

The invention provides a solution for adding mechanical reinforcement to already cured fiber composite components without affecting their assembly process. This is achieved by using partial regions of the components where synthetic resin is not present, which can be fully enclosed by cured regions to provide structural stability and prevent uncontrolled movement of the individual fibers. This results in improved handling of the components during installation.

Problems solved by technology

In the use of fiber composite components whose fibers comprise carbon, riveting for additional reinforcement of the connection is problematic because CFP is not an isotropic material, and thus a quasi-isotropic layer structure is needed to achieve adequate strength of the hole walls for riveting.

Furthermore, because of the drilling dust arising during riveting, all riveting work needs to be completed prior to commencement of system installation, which increases production expenditure.

On the other hand, other generally-known alternative mechanical reinforcement means, for example pin connections, sewn connections and the like, cannot be placed in already-cured fiber composite components, and therefore they have so far been limited to use in individual components or large-format integral structures.

However, since this technical solution is primarily based on an increase in the shearing strength, its use is limited to special applications that require such increased shearing strength of an adhesive connection between two plate-shaped fiber composite components.

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