EP2603426A1 - Flugzeuginnenverkleidungsbauteil und verfahren zur herstellung eines flugzeuginnenverkleidungsbauteils - Google Patents
Flugzeuginnenverkleidungsbauteil und verfahren zur herstellung eines flugzeuginnenverkleidungsbauteilsInfo
- Publication number
- EP2603426A1 EP2603426A1 EP11741409.4A EP11741409A EP2603426A1 EP 2603426 A1 EP2603426 A1 EP 2603426A1 EP 11741409 A EP11741409 A EP 11741409A EP 2603426 A1 EP2603426 A1 EP 2603426A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcing fibers
- matrix
- strength
- aircraft interior
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 130
- 239000002131 composite material Substances 0.000 claims abstract description 38
- 239000012783 reinforcing fiber Substances 0.000 claims description 217
- 239000000835 fiber Substances 0.000 claims description 68
- 239000002344 surface layer Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 23
- 239000010410 layer Substances 0.000 claims description 22
- 239000011162 core material Substances 0.000 claims description 17
- 239000002318 adhesion promoter Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000007767 bonding agent Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 239000000088 plastic resin Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 description 9
- 230000006837 decompression Effects 0.000 description 6
- 239000012634 fragment Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229920002239 polyacrylonitrile Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003733 fiber-reinforced composite Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 230000009993 protective function Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/066—Interior liners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249942—Fibers are aligned substantially parallel
- Y10T428/249944—Fiber is precoated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249948—Fiber is precoated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
Definitions
- Aircraft interior trim components not only serve the optical design of the aircraft cabin, but also have the task behind the interior trim components, i. arranged in a space between the interior trim components and the aircraft structure components, such. electrical lines, air or water pipes or other components of the aircraft to prevent damage.
- the interior trim components In order to be able to perform this protective function, the interior trim components must have a certain mechanical strength. Further, in a case where loads applied to the interior trim components are so large that damage to the aircraft components disposed behind the interior trim components can not be securely excluded, the additional requirement is possible damage to these components by correspondingly visible damage to the interior trim components at least immediately visually recognizable. Finally, in the event of a sudden pressure drop in the aircraft cabin, a so-called rapid decompression, the interior trim components must not endanger the passengers on board the aircraft or block escape routes.
- Interior trim components currently installed in modern aircraft are generally designed as sandwich components with a core and decorative layers applied to the core, for example in DE 10 2006 041 787 A1, DE 10 2007 041 282 C1 or DE 10 2007 026 296 A1. Furthermore, it is known, for example, from DE 10 2007 061 433 A1 and DE 10 2009 012 015, unpublished, to provide aircraft interior trim components with decompression elements integrated into the aircraft interior trim components, which in the event of a sudden drop in pressure in the aircraft cabin can be decompressed by air from the aircraft cabin release and thereby prevent damage to the aircraft interior trim components in a rapid decompression.
- An aircraft interior trim component according to the invention consists at least partially of a composite material.
- the composite material comprises a matrix in which first and second reinforcing fibers are incorporated.
- the strength of an interface between a surface of the first reinforcing fibers and the matrix surrounding the surface of the first reinforcing fibers is greater than the strength of an interface between a surface of the second reinforcing fibers and the matrix surrounding the surface of the second reinforcing fibers.
- the composite material used for producing the aircraft interior lining component according to the invention contains fibers which are incorporated into the matrix receiving the fibers to different degrees.
- the aircraft interior trim component according to the invention may consist entirely of such a composite material. However, it is also conceivable to manufacture only a portion or a plurality of sections of the aircraft interior lining component from the composite material. For example, only one core of the aircraft interior lining component according to the invention may consist of the composite material which may be provided in the region of its surface with a decorative layer or a plurality of decorative layers. Furthermore, it is conceivable to use only sections of the aircraft interior trim component, behind which sensitive components of the aircraft are arranged, made of the composite material and other sections of the aircraft
- the reinforcing mechanisms in the composite material caused by the fibers and the fracture behavior of the composite material can be selectively influenced.
- the use of a composite material for producing the aircraft interior trim component according to the invention which contains reinforcing fibers which are bound differently in a matrix, can realize a "stepwise" failure of the aircraft interior trim component. That is, when exposed to a mechanical stress on the aircraft interior trim component deliberately fail individual areas of the composite material, so that the damage of the component is directly visually recognizable.
- the strengths of the matrix, the first reinforcing fibers and the second reinforcing fibers, as well as the strength of the interface between the surface of the first reinforcing fibers and matrix and the strength of the interface between the surface of the second reinforcing fibers and the matrix, can be selected and adjusted application specific.
- the interfacial strength between the second reinforcing fibers and the matrix may be chosen to result in interfacial separation between the second reinforcing fibers and the matrix, and thus visible damage to the aircraft interior.
- cladding component comes when a mechanical load acts on the aircraft interior lining component, which may possibly cause damage to the behind the aircraft interior trim component arranged aircraft components.
- the (fracture) strength and (fracture) toughness of the composite which are influenced by the strengths of the matrix, the first reinforcing fibers and the second reinforcing fibers, and the interfacial strengths between the fibers and the matrix, can be adapted to the desired protective effect of the aircraft interior trim component or the mechanical loads potentially acting on the aircraft interior trim component are adjusted.
- the interfacial strength between the second reinforcing fibers and the matrix may be tuned to the strength of the second reinforcing fibers in the composite material used to make the aircraft interior trim component of the invention such that the strength of the interface between the surface of the second reinforcing fibers and that surrounding the surface of the second reinforcing fibers Matrix is smaller than the strength of the second reinforcing fibers.
- the interfacial strength between the second reinforcing fibers and the matrix and the strength of the second reinforcing fibers are matched such that in the composite, when a mechanical stress is applied to the aircraft interior trim component, the interface between the surface of the second reinforcing fibers and the surface The matrix surrounding the second reinforcing fibers fails before the second reinforcing fibers fail. That is, interfacial separation occurs between the second reinforcing fibers and the matrix, and the second reinforcing fibers slip through the matrix without failure of the second reinforcing fibers.
- the second reinforcing fibers may therefore serve as a sort of "safety net" which substantially maintains the basic structure of the aircraft interior trim component even if the interfaces between the second reinforcing fibers and the matrix, the matrix and / or the first reinforcing fibers embedded in the matrix fail.
- the failure of the interfaces between the second reinforcing fibers and the matrix in the composite leads to a redistribution of the Aircraft interior panel load acting on the first reinforcing fibers, which, depending on the height of the load, of course, may be deliberately overloaded and break. While the load on the aircraft interior trim component is large enough to cause interfacial separation between the second reinforcing fibers and the matrix, but insufficient to cause failure of the matrix and / or the first reinforcing fibers, interfacial separation becomes intermediate between the second reinforcing fibers and the matrix through deformation of the aircraft interior trim component.
- the strength of the interface between the surface of the first reinforcing fibers and the matrix surrounding the surface of the first reinforcing fibers may be adapted to the strength of the first reinforcing fibers such that a desired fracture behavior of the composite material is achieved in the event of mechanical stress on the aircraft interior trim component.
- the strength of the interface between the surface of the first reinforcing fibers and the matrix surrounding the surface of the first reinforcing fibers may be greater than the strength of the first reinforcing fibers.
- the reinforcing effect of the first reinforcing fibers is particularly well utilized, i.
- the strength of the composite material approximates the strength of the first reinforcing fibers because failure of the first reinforcing fibers occurs upon exposure of the aircraft interior trim component to mechanical stress before interfacial separation occurs between the first reinforcing fibers and the matrix.
- High interfacial strengths between the first reinforcing fibers and the matrix are therefore desirable when a high maximum breaking strength of the aircraft interior trim component is desired.
- a fiber reinforced composite having strong fiber / matrix interfaces may, of course, have limited fracture toughness, depending, of course, on the fracture toughnesses of the fibers, and particularly the matrix. If the interior trim component is to have a high fracture toughness, it can Therefore, it may be useful to adjust the strength of the interface between the surface of the first reinforcing fibers and the surrounding the surface of the first reinforcing fibers matrix so that in the case of a mechanical load on the aircraft interior trim component to a partial interface separation between the first reinforcing fibers and the matrix before the fail first reinforcing fibers.
- the surface layer applied to the first reinforcing fibers is preferably matched to the matrix material as well as the material of the first reinforcing fibers.
- the first reinforcing fibers may be provided with a surface layer of a thermoplastic plastic material such as polyurethane, a thermosetting plastic material or a plastic material added with a metal such as nickel.
- the second reinforcing fibers thus preferably form a fiber network extending at least two-dimensionally, preferably three-dimensionally over the aircraft interior trim component, which ensures that the basic structure of the aircraft interior trim component is at least substantially retained in the event of a failure of the first reinforcing fibers and / or matrix.
- the first reinforcing fibers may be provided with a surface layer of an adhesion promoter increasing the strength of the interface between the surface of the first reinforcing fibers and the matrix surrounding the surface of the first reinforcing fibers.
- the first reinforcing fibers Prior to application of the primer surface layer, the first reinforcing fibers may be subjected to a surface pretreatment that improves adhesion of the primer surface layer to the fiber surface.
- the surface of first reinforcing fibers can be roughened before the adhesion promoter surface layer is applied to the surface of first reinforcing fibers.
- FIG. 1 shows two aircraft interior trim components in an aircraft mounted condition
- Fig. 1 shows an arrangement with two panel-shaped Arthurvercertainsbau- parts 10, which are attached via mounting frame 12 and connected to the mounting frame 12 connecting elements 14 to a primary structure 16 of an aircraft.
- the aircraft interior trim components 10 may be, for example, side trim panels which are installed in the region of the side walls of a passenger cabin of the aircraft.
- the aircraft interior trim components 10 thus on the one hand serve the optical design of the aircraft cabin, but on the other hand also protect aircraft components, such as e.g. the illustrated in Fig. 1 system line 18 from damage by mechanical loads.
- Each aircraft interior trim component 10 includes a core 20 made of a fiber reinforced composite material. On the core 20, a single-layer or multi-layer executed decorative layer 22 is applied. Further, on a part of the surface or the entire surface of the aircraft interior trim component 10 may be applied an existing example of copper network that causes an electromagnetic shield.
- the composite material forming the core 20 of each aircraft interior trim component 10 comprises a matrix 24 made of a plastic resin such as an epoxy resin, a polyester resin, a vinyl ester resin or a phenolic resin.
- a matrix 24 made of a plastic resin such as an epoxy resin, a polyester resin, a vinyl ester resin or a phenolic resin.
- first reinforcing fibers 26 and second reinforcing fibers 28 are embedded.
- currency Whereas the first reinforcing fibers 26 in the form of short fibers, which are oriented arbitrarily in all three spatial directions, are introduced into the matrix 24, the second reinforcing fibers 28 in the form of a three-dimensional fiber braid are embedded in the matrix 24.
- the first and second reinforcing fibers 26, 28 are in the embodiment shown of the same material and may be formed, for example, as carbon fibers, glass fibers or aramid fibers.
- first and second reinforcing fibers 26, 28 differ in that the second reinforcing fibers 28 are treated as untreated, i. non-surface-coated fibers are incorporated into the matrix 24, whereas the first reinforcing fibers 26 carry a surface layer 29 of a primer which increases the strength of an interface between the surface of the first reinforcing fibers 26 and the matrix 24 surrounding the surface of the first reinforcing fibers 26
- the bonding agent applied to the first reinforcing fibers 26 as the surface layer 29 is adapted to the matrix 24 and the first reinforcing fibers 26, and may be, for example, a thermoplastic resin material or the like.
- the strength of the interface between the surface of the first reinforcing fibers 26 and the matrix 24 is greater than that Strength of an interface between the untreated surface of the second reinforcing fibers 28 and the surface 24 of the second reinforcing fibers 28 surrounding matrix 24.
- the material of the second reinforcing fibers 28 and the material of the matrix 24 is selected so that the strength of the interface between the surface of the second Reinforcing fibers 28 and the matrix 24 is smaller than the strength of the second reinforcing fibers 28th
- the interface between the surface of the second reinforcing fibers 28 and the matrix surrounding the surface of the second reinforcing fibers 28 fails before the second reinforcing fibers 28 themselves fail.
- the interface separation between the second reinforcing fibers 28 and the matrix 24 upon application of a mechanical load to the aircraft interior trim member 10 causes the load to be discharged onto the first reinforcing fibers 26.
- the first reinforcing fibers 26 are under the Prerequisite that the load acting on the aircraft interior trim component 10 exceeds the strength of the first reinforcing fibers 26, thus deliberately overloaded and break.
- Aircraft interior trim component 10 substantially incorporates its basic structure.
- the fiber / matrix material mixture is then poured over the second reinforcing fibers 28 arranged in a mold and formed as a three-dimensional fiber braid.
- the surface of the second reinforcing fibers 28 is in the untreated state, that is, on the surface of the second reinforcing fibers 28, no adhesion promoter surface layer is applied.
- a subsequent curing step that may occur at elevated temperature, at a desired pressure, and / or under a desired atmosphere results in a composite material that forms the core 20 of the aircraft interior trim component 10.
- the core 20 is finally provided with the decorative layer 22 and the not shown in the figures copper mesh layer.
- the aircraft interior trim component 10 shown in FIGS. 4 and 5 differs from the structural component 10 illustrated in FIGS.
- the composite material forming the core 20 of the aircraft interior trim component 10 does not comprise first reinforcing fibers 26 formed as short fibers, but only one into the matrix 24 embedded three-dimensional fiber braid.
- the fiber braid contains, in addition to untreated second reinforcing fibers 28, first reinforcing fibers 26 provided with an adhesive surface layer 29, ie the fiber braid is composed of first and second reinforcing fibers 26, 28.
- the matrix material is cured and the resulting aircraft interior trim component core 20 is provided with the decorative layer 22 and the copper mesh layer not illustrated in the figures.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Aviation & Aerospace Engineering (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US37290810P | 2010-08-12 | 2010-08-12 | |
| DE201010034084 DE102010034084A1 (de) | 2010-08-12 | 2010-08-12 | Flugzeuginnenverkleidungsbauteil und Verfahren zur Herstellung eines Flugzeuginnenverkleidungsbauteils |
| PCT/EP2011/003943 WO2012019739A1 (de) | 2010-08-12 | 2011-08-05 | Flugzeuginnenverkleidungsbauteil und verfahren zur herstellung eines flugzeuginnenverkleidungsbauteils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2603426A1 true EP2603426A1 (de) | 2013-06-19 |
Family
ID=44629963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11741409.4A Withdrawn EP2603426A1 (de) | 2010-08-12 | 2011-08-05 | Flugzeuginnenverkleidungsbauteil und verfahren zur herstellung eines flugzeuginnenverkleidungsbauteils |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130157536A1 (de) |
| EP (1) | EP2603426A1 (de) |
| DE (1) | DE102010034084A1 (de) |
| WO (1) | WO2012019739A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5641366A (en) * | 1988-01-20 | 1997-06-24 | Loral Vought Systems Corporation | Method for forming fiber-reinforced composite |
| DE19852029A1 (de) * | 1998-11-11 | 2000-05-18 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von Verbundwerkstoffen |
| DE19932274A1 (de) * | 1999-07-05 | 2001-01-18 | Inst Polymerforschung Dresden | Faserverbundwerkstoff und Verfahren zu seiner Herstellung |
| US20050197023A1 (en) * | 2000-03-30 | 2005-09-08 | Woolstencroft David H. | Composite comprising structural and non structural fibers |
| DE102006041787A1 (de) | 2006-09-06 | 2008-03-27 | Airbus Deutschland Gmbh | Mehrschichtiges Innenausstattungsbauteil |
| DE102007026296A1 (de) | 2007-06-06 | 2008-12-18 | Airbus Deutschland Gmbh | Wabenkern, insbesondere für ein Sandwichbauteil, aus wenigstens zwei miteinander verbundenen Wabenkernteilen und Verfahren zu seiner Herstellung |
| DE102007041282B4 (de) | 2007-08-31 | 2009-05-07 | Airbus Deutschland Gmbh | Sandwichbauteilanordnung mit einem L-förmigen oder T-förmigen Element und Verfahren zur Herstellung derselben |
| DE102007061433B4 (de) | 2007-12-20 | 2012-10-25 | Airbus Operations Gmbh | Verbesserte Dekompressionseinrichtung mit einem einstellbaren Auslösedruck |
| DE102009012015A1 (de) | 2009-03-06 | 2010-09-09 | Airbus Deutschland Gmbh | Dekompressionsanordnung für ein Luftfahrzeug |
-
2010
- 2010-08-12 DE DE201010034084 patent/DE102010034084A1/de not_active Withdrawn
-
2011
- 2011-08-05 EP EP11741409.4A patent/EP2603426A1/de not_active Withdrawn
- 2011-08-05 WO PCT/EP2011/003943 patent/WO2012019739A1/de not_active Ceased
-
2013
- 2013-02-08 US US13/763,141 patent/US20130157536A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20130157536A1 (en) | 2013-06-20 |
| DE102010034084A1 (de) | 2012-02-16 |
| WO2012019739A1 (de) | 2012-02-16 |
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