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FR3128896B1 - Reinforcement for a composite material structure, and composite material structure comprising such reinforcement - Google Patents

Reinforcement for a composite material structure, and composite material structure comprising such reinforcement Download PDF

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Publication number
FR3128896B1
FR3128896B1 FR2111983A FR2111983A FR3128896B1 FR 3128896 B1 FR3128896 B1 FR 3128896B1 FR 2111983 A FR2111983 A FR 2111983A FR 2111983 A FR2111983 A FR 2111983A FR 3128896 B1 FR3128896 B1 FR 3128896B1
Authority
FR
France
Prior art keywords
composite material
material structure
reinforcement
pocket
end portion
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.)
Active
Application number
FR2111983A
Other languages
French (fr)
Other versions
FR3128896A1 (en
Inventor
Benoît Matte
Robert Szumiel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR2111983A priority Critical patent/FR3128896B1/en
Priority to EP22817224.3A priority patent/EP4429860A1/en
Priority to PCT/EP2022/081561 priority patent/WO2023084001A1/en
Publication of FR3128896A1 publication Critical patent/FR3128896A1/en
Application granted granted Critical
Publication of FR3128896B1 publication Critical patent/FR3128896B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B29C33/505—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/001—Producing articles with hollow walls formed of hollow ridges or ribs, e.g. separate ridges; continuous corrugated structure
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
    • B29C2043/3649—Inflatable bladders using gas or fluid and related details

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

TITRE : Armature pour structure en matériau composite, et structure en matériau composite comprenant une telle armature La présente invention concerne un élément d’armature (1) pour structure en matériau composite, comprenant des nappes de fibres (11) formant une pluralité de poches juxtaposées, et séparées les unes des autres par des portions latérales des nappes de fibres, chaque poche comprenant au moins une vessie gonflable, et étant ouverte. Selon l’invention, les portions latérales entourant chaque poche se prolongent par une portion d’extrémité mobile entre une position de recouvrement dans laquelle elle recouvre au moins partiellement l’ouverture de la poche, et une pluralité de positions dans lesquelles une partie de la portion d’extrémité recouvre au moins partiellement l’ouverture de la poche et une autre partie de la portion d’extrémité s’étend dans le prolongement de la portion latérale et contribue à séparer la poche d’une poche voisine. L’invention concerne également une structure en matériau composite comprenant un tel élément d’armature (1), et un procédé d’obtention d’une telle structure. Figure d’abrégé : Figure 1TITLE: Reinforcement for a composite material structure, and composite material structure comprising such a reinforcement The present invention relates to a reinforcement element (1) for a composite material structure, comprising fiber sheets (11) forming a plurality of juxtaposed pockets, and separated from each other by lateral portions of the fiber sheets, each pocket comprising at least one inflatable bladder, and being open. According to the invention, the lateral portions surrounding each pocket are extended by an end portion movable between a covering position in which it at least partially covers the opening of the pocket, and a plurality of positions in which a part of the end portion at least partially covers the opening of the pocket and another part of the end portion extends in the extension of the lateral portion and contributes to separating the pocket from a neighboring pocket. The invention also relates to a composite material structure comprising such a reinforcement element (1), and a method for obtaining such a structure. Abstract figure: Figure 1

FR2111983A 2021-11-10 2021-11-10 Reinforcement for a composite material structure, and composite material structure comprising such reinforcement Active FR3128896B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2111983A FR3128896B1 (en) 2021-11-10 2021-11-10 Reinforcement for a composite material structure, and composite material structure comprising such reinforcement
EP22817224.3A EP4429860A1 (en) 2021-11-10 2022-11-10 Reinforcement for structure made of composite material, and structure made of composite material comprising such a reinforcement
PCT/EP2022/081561 WO2023084001A1 (en) 2021-11-10 2022-11-10 Reinforcement for structure made of composite material, and structure made of composite material comprising such a reinforcement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2111983A FR3128896B1 (en) 2021-11-10 2021-11-10 Reinforcement for a composite material structure, and composite material structure comprising such reinforcement
FR2111983 2021-11-10

Publications (2)

Publication Number Publication Date
FR3128896A1 FR3128896A1 (en) 2023-05-12
FR3128896B1 true FR3128896B1 (en) 2024-08-23

Family

ID=80595552

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2111983A Active FR3128896B1 (en) 2021-11-10 2021-11-10 Reinforcement for a composite material structure, and composite material structure comprising such reinforcement

Country Status (3)

Country Link
EP (1) EP4429860A1 (en)
FR (1) FR3128896B1 (en)
WO (1) WO2023084001A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1303210A (en) * 1961-05-03 1962-09-07 Haldemann S A Process for manufacturing a hollow honeycomb object and object such as a ski obtained by this process
CH603332A5 (en) * 1975-04-29 1978-08-15 Jean Leclerc Sleeve for locating stiffening tubes within foamed structures
GB9211263D0 (en) * 1992-05-28 1992-07-15 British Aerospace Manufacture of articles from composite material
US6513757B1 (en) * 1999-07-19 2003-02-04 Fuji Jukogyo Kabushiki Kaisha Wing of composite material and method of fabricating the same
US6896841B2 (en) * 2003-03-20 2005-05-24 The Boeing Company Molding process and apparatus for producing unified composite structures
US10843416B2 (en) * 2015-05-11 2020-11-24 Gulfstream Aerospace Corporation Composite reinforcement structures and aircraft assemblies comprising composite reinforcement structures
GB2583941A (en) * 2019-05-14 2020-11-18 Airbus Operations Ltd Stiffened panel assembly

Also Published As

Publication number Publication date
EP4429860A1 (en) 2024-09-18
WO2023084001A1 (en) 2023-05-19
FR3128896A1 (en) 2023-05-12

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