EP0856601B1 - Verbundene mehrschichtige Textur für Verbundmaterialien - Google Patents

Verbundene mehrschichtige Textur für Verbundmaterialien Download PDF

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Publication number
EP0856601B1
EP0856601B1 EP98400229A EP98400229A EP0856601B1 EP 0856601 B1 EP0856601 B1 EP 0856601B1 EP 98400229 A EP98400229 A EP 98400229A EP 98400229 A EP98400229 A EP 98400229A EP 0856601 B1 EP0856601 B1 EP 0856601B1
Authority
EP
European Patent Office
Prior art keywords
column
weft
yarns
texture
weft yarns
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.)
Expired - Lifetime
Application number
EP98400229A
Other languages
English (en)
French (fr)
Other versions
EP0856601A1 (de
Inventor
François Billaut
Laurent Jean Pierre David
Jean Pierre Marie Dessinges
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.)
Ctmi Cotton Textiles Pour Materiaux Innovants
Safran Aircraft Engines SAS
Original Assignee
Ctmi Cotton Textiles Pour Materiaux Innovants
SNECMA Moteurs SA
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 Ctmi Cotton Textiles Pour Materiaux Innovants, SNECMA Moteurs SA filed Critical Ctmi Cotton Textiles Pour Materiaux Innovants
Publication of EP0856601A1 publication Critical patent/EP0856601A1/de
Application granted granted Critical
Publication of EP0856601B1 publication Critical patent/EP0856601B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D25/00—Woven fabrics not otherwise provided for
    • D03D25/005—Three-dimensional woven fabrics

Definitions

  • the present invention relates to a textile weave optimized, of the kind linked multilayer texture, susceptible to be used in the production of parts made of materials composites highly stressed and / or subject to impacts.
  • pieces that can be made from of textures according to the invention the blades of wide-rope blowers for civil aircraft engines, structural crank arms for aircraft engines civil or military, leading edges or panels aircraft autoraidis.
  • Textile structures called “1D” and “2D”, according to their fibers extend in one direction only or in two separate directions, do not meet, obviously, with the constraints indicated above.
  • the so-called “3D” multilayer structures (with fibers arranged in three directions in space) can be approximate, in a partial way, the objectives referred to in the scope of the invention.
  • multilayer structures in more than three directions of fibers (“4D”, “5D”, “9D”, “11D"), the latter cannot be operated industrially, in particular because of the extreme complexity of their realization by automatable processes.
  • Multilayer textures "3D non orthogonal”, although more suitable, have the disadvantage of have too high binding angles, which is the case of simple armor, of the multilayer taffeta kind, multilayer satin or multilayer twill, and also more elaborate armor, such as that known as designation "3X”.
  • the object of the present invention is to remedy these disadvantages, and therefore to provide a texture new, with all the desirable properties previously considered, while optimizing transfers force and compressive strength, this texture remaining achievable by weaving techniques known and / or easily adaptable by the skilled person.
  • Weft threads 1 to 28 are linked together by twelve warp threads in the armor of base, which are arranged on four parallel planes P1, P2, P3, P4.
  • Figure 1 shows very schematically all of the chain son, while Figures 2 to 5 show separately, for clarity, the wires of chain of the different planes P1 to P4.
  • Each of these plans contains three parallel chain wires, superimposed, the arrangement being as follows in the detail :
  • a first wire of chain 29 connects the upper extreme weft yarn 1 of the column C1 to the upper intermediate weft thread 16 of column C5, and it comes back to the extreme weft thread upper corresponding to thread 1, in the basic pattern next.
  • a second chain wire 30 connects the upper intermediate frame 2 of column C1 over lower intermediate frame 17 of column C5, and there returns to the upper intermediate weft thread corresponding to thread 2, in the following basic pattern.
  • a third warp thread 31 connects the weft thread lower intermediate 3 of column C1 to the weft thread lower extreme 18 of column C5, and it goes back to the lower intermediate weft thread corresponding to the thread 3, in the following basic pattern.
  • a first wire of chain 32 connects the upper extreme weft thread 8 of the column C3 to the upper intermediate weft thread 23 of column C7, and it goes back to the extreme weft thread upper corresponding to thread 8, in the basic pattern next.
  • a second chain wire 33 connects the upper intermediate frame 9 of column C3 over lower intermediate frame 24 of column C7, and there returns to the upper intermediate weft thread corresponding to thread 9, in the following basic pattern.
  • a third warp thread 34 connects the weft thread lower intermediate 10 of column C3 over lower end frame 25 of column C7, and it comes back on the corresponding lower intermediate weft thread in thread 10, in the following basic pattern.
  • a first wire of chain 35 connects the upper extreme weft thread 15 of the column C5 to the upper intermediate weft thread 2 of the column C1, in the following basic pattern, and it comes back on the upper extreme weft thread corresponding to the thread 15, in the following basic pattern.
  • a second thread of chain 36 connects the upper intermediate weft thread 16 from column C5 to the lower intermediate weft thread 3 of column C1, in the following basic pattern, and it returns to the upper intermediate weft thread corresponding to thread 15, in the following basic pattern.
  • a third warp thread 37 connects the weft thread lower intermediate 17 of column C5 over lower extreme frame 4 of column C1, in the pattern next basic, and it comes back to the weft thread lower intermediate corresponding to wire 17, in the following basic pattern.
  • a first wire chain 38 connects the upper extreme weft thread 22 of column C7 to the upper intermediate weft thread 9 of column C3, in the following basic pattern, and it returns to the upper extreme weft thread corresponding to thread 22, in the following basic pattern.
  • a second warp thread 39 connects the weft thread upper intermediate 23 of column C7 over lower intermediate frame 10 of column C3, in the next basic pattern, and it comes back to the weft thread upper intermediate corresponding to wire 23, in the following basic pattern.
  • a third and last thread of chain 40 connects the lower intermediate weft thread 24 from column C7 to the lower extreme weft thread 11 of column C3, in the following basic pattern, and it returns to the lower intermediate weft thread corresponding to thread 24, in the following basic pattern.
  • this basic configuration defined on four planes can repeat itself indefinitely, in the transverse direction, the different chain wires 29 to 40 thus forming sheets.
  • the compressive strength of the "2.5D" structure is 300 MPa, compare with the value of 500 MPa obtained with the texture of the invention.
  • the linked multilayer texture, object of the invention can be used for the realization of a dawn of wide-rope blower made of composite material for engine airline.
  • the invention is not limited to the only embodiment of this multilayer texture linked, which has been described above by way of example; she embraces, on the contrary, all the variants of realization and application respecting the same principle. It is thus, in particular, that the basic armor previously described can be completed, in the thickness direction, by adding pairs of weft thread levels and, in the longitudinal direction (direction of the warp threads), by addition of weft yarn columns, without move away from the principle of the invention. In the same order of ideas, this texture is achievable not only in carbon fibers, but also glass fibers, aramid, silica or ceramic.
  • This texture linked multilayer is not limited, in its applications, fan blades or other engine parts aircraft.
  • the multilayer texture linked object of the present invention can be transformed not only by the "RTM" process, but still by any other technique appropriate, to achieve composite materials structural to finally get from this texture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Reinforced Plastic Materials (AREA)

Claims (1)

  1. Verbundene, mehrschichtige Textur für Verbundmaterialien,
       dadurch gekennzeichnet,    dass ihre Grundbindung einerseits mindestens achtundzwanzig Schussfäden (1 bis 28) aufweist, die in mindestens acht Säulen (C1 bis C8) verteilt sind, die sich jeweils in der Richtung der Dicke (E) der Textur erstrecken, wobei die Schussfäden im Zickzack unter Abwechseln der Säulen (C2, C4, C6, C8) mit mindestens drei übereinander liegenden und durch einen bestimmten Schritt (P) voneinander beabstandeten Schussfäden und der Säulen (C1, C3, C5, C7) mit mindestens vier übereinander liegenden und durch den gleichen Schritt (P) voneinander beabstandeten Schussfäden angeordnet sind, wobei auf diese Weise die Schussfäden (1 bis 28) in mindestens sieben Niveaus (N1 bis N7) angeordnet sind, und andererseits mindestens zwölf Kettfäden (29 bis 40) aufweist, die in mindestens vier parallelen Ebenen (P1, P2, P3, P4) angeordnet sind, wobei jede Ebene mindestens drei parallel übereinander liegende Kettfäden aufweist, wobei
    ein erster Kettfaden (29, 32, 35, 38) den äußeren oberen Schussfaden (1, 8, 15, 22) einer Säule (C1, C3, C5, C7) mit mindestens vier Schussfäden mit einem zwischenliegenden oberen Schussfaden (16, 23, 2, 9) einer Säule (C5, C7, C1, C3) mit mindestens vier Schussfäden verbindet, die von der vorigen Säule um mindestens zwei Schritte (P) beabstandet ist, und dann zu einem äußeren oberen Schussfaden (1, 8, 15, 22) einer Säule (C1, C3, C5, C7) mit mindestens vier Schussfäden zurückkehrt, die von der ersten Säule um mindestens vier Schritte (P) beabstandet ist,
    mindestens ein weiterer Kettfaden (30, 33, 36, 39) einen zwischenliegenden oberen Schussfaden (2, 9, 16, 23) einer Säule (C1, C3, C5, C7) mit mindestens vier Schussfäden mit einem zwischenliegenden unteren Schussfaden (17, 24, 3, 10) einer Säule (C5, C7, C1, C3) mit mindestens vier Schussfäden verbindet, die von der vorigen Säule um mindestens zwei Schritte (P) beabstandet ist, und dann zu einem zwischenliegenden oberen Schussfaden (2, 9, 16, 23) einer Säule (C1, C3, C5, C7) mit mindestens vier Schussfäden zurückkehrt, die von der ersten Säule um mindestens vier Schritte (P) beabstandet ist,
    ein dritter oder letzter Kettfaden (31, 34, 37, 40) einen zwischenliegenden unteren Schussfaden (3, 10, 17, 24) einer Säule (C1, C3, C5, C7) mit mindestens vier Schussfäden mit dem äußeren unteren Schussfaden (18, 25, 4, 11) einer Säule (C5, C7, C1, C3) mit mindestens vier Schussfäden verbindet, die von der vorigen Säule um mindestens zwei Schritte (P) beabstandet ist, und dann zu einem zwischenliegenden unteren Schussfaden (3, 10, 17, 24) einer Säule (C1, C3, C5, C7) mit mindestens vier Schussfäden zurückkehrt, die von der ersten Säule um mindestens vier Schritte (P) beabstandet ist,
    wobei die Positionen der parallelen Kettfäden (29, 30, 31; 32, 33, 34; 35, 36, 37; 38, 39, 40) von einer Ebene zur nächsten in Längsrichtung um einen Schritt (P) verschoben sind.
EP98400229A 1997-02-04 1998-02-04 Verbundene mehrschichtige Textur für Verbundmaterialien Expired - Lifetime EP0856601B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9701200 1997-02-04
FR9701200A FR2759096B1 (fr) 1997-02-04 1997-02-04 Texture multicouche liee pour materiaux composites structuraux

Publications (2)

Publication Number Publication Date
EP0856601A1 EP0856601A1 (de) 1998-08-05
EP0856601B1 true EP0856601B1 (de) 2002-06-12

Family

ID=9503274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400229A Expired - Lifetime EP0856601B1 (de) 1997-02-04 1998-02-04 Verbundene mehrschichtige Textur für Verbundmaterialien

Country Status (6)

Country Link
US (1) US5899241A (de)
EP (1) EP0856601B1 (de)
JP (1) JP3608643B2 (de)
CA (1) CA2228793C (de)
DE (1) DE69805870T2 (de)
FR (1) FR2759096B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101529000B (zh) * 2006-10-18 2011-05-11 梅西耶-道提股份有限公司 3d复合织物

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100491615C (zh) * 2001-04-04 2009-05-27 哈伯西有限公司 具有带有两个织物层的织物的带
WO2004098885A2 (en) * 2003-04-30 2004-11-18 Saint-Gobain Performance Plastics Corporation Flexible composites and applications including the flexible composites
US20050093188A1 (en) * 2003-10-29 2005-05-05 Forest Mark L.L. Binderless preform manufacture
SI1616726T1 (sl) * 2004-07-14 2008-02-29 Roca Sergio Lopez Protidrsna tekstilna prevleka za pnevmatike vozil
US7713893B2 (en) * 2004-12-08 2010-05-11 Albany Engineered Composites, Inc. Three-dimensional woven integrally stiffened panel
US7247212B2 (en) * 2004-12-21 2007-07-24 General Electric Company Orthogonal weaving for complex shape preforms
FR2881174B1 (fr) 2005-01-27 2010-08-20 Snecma Moteurs Dispositif de positionnement d'une aube et disque aubage comportant un tel dispositif
FR2887601B1 (fr) * 2005-06-24 2007-10-05 Snecma Moteurs Sa Piece mecanique et procede de fabrication d'une telle piece
FR2893532B1 (fr) * 2005-11-23 2008-02-15 Messier Dowty Sa Sa Procede de fabrication d'une chape sur un element structural en materiau composite, notamment une bielle
FR2893683B1 (fr) 2005-11-23 2008-02-01 Messier Dowty Sa Sa Procede de fabrication d'une bielle en materiau composite
FR2902803B1 (fr) * 2006-06-21 2008-11-14 Snecma Propulsion Solide Sa Structure fibreuse de renfort pour piece en materiau composite et piece la comportant
FR2915510B1 (fr) 2007-04-27 2009-11-06 Snecma Sa Amortisseur pour aubes de turbomachines
US7964520B2 (en) * 2007-12-21 2011-06-21 Albany Engineered Composites, Inc. Method for weaving substrates with integral sidewalls
US7712488B2 (en) * 2008-03-31 2010-05-11 Albany Engineered Composites, Inc. Fiber architecture for Pi-preforms
US8586489B2 (en) * 2008-09-19 2013-11-19 J.B. Martin Company Inc. Woven fabric
US8127802B2 (en) * 2008-10-29 2012-03-06 Albany Engineered Composites, Inc. Pi-preform with variable width clevis
US8079387B2 (en) * 2008-10-29 2011-12-20 Albany Engineered Composites, Inc. Pi-shaped preform
FR2939153B1 (fr) * 2008-11-28 2011-12-09 Snecma Propulsion Solide Realisation d'une structure fibreuse a epaisseur evolutive par tissage 3d
US8846553B2 (en) * 2008-12-30 2014-09-30 Albany Engineered Composites, Inc. Woven preform with integral off axis stiffeners
MX371120B (es) * 2009-10-02 2020-01-17 Barrday Inc Telas de capas multiples tejidas y metodos para fabricar las mismas.
US8662855B2 (en) * 2010-08-31 2014-03-04 United Technologies Corporation Integrally woven composite fan blade using progressively larger weft yarns
FR2965202B1 (fr) * 2010-09-28 2012-10-12 Snecma Procede de fabrication d'une piece et piece massive composite obtenue par ce procede
FR2968679B1 (fr) * 2010-12-13 2014-02-07 Snecma Structure fibreuse pour piece en materiau composite ayant une ou plusieurs parties en forme d'arche
FR2970481B1 (fr) * 2011-01-18 2014-06-13 Snecma Structure fibreuse pour piece en materiau composite de geometrie complexe
IL236544A0 (en) * 2014-12-31 2015-04-30 Elbit Systems Ltd Thermal management of printed circuit board components
FR3070402B1 (fr) * 2017-08-30 2020-08-28 Safran Aircraft Engines Texture fibreuse tissee pour la formation d'une preforme de carter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20267A (en) * 1858-05-18 Thick wovew pabbic
US1750498A (en) * 1926-09-06 1930-03-11 Charles C Trua Process of drying, cleaning, and polishing sheet metal with corncob material
US2949134A (en) * 1955-09-23 1960-08-16 Scapa Dryers Ltd Papermakers' felts and like industrial woven textile fabrics
US4174739A (en) * 1978-02-21 1979-11-20 Fenner America Ltd. Tubular fabric
US4312913A (en) * 1980-05-12 1982-01-26 Textile Products Incorporated Heat conductive fabric
FR2610951B1 (fr) * 1987-02-17 1989-05-05 Aerospatiale Armature tissee pour materiau composite
US4922969A (en) * 1988-09-22 1990-05-08 Hitco Multi-layer woven fabric having varying material composition through its thickness
US5050646A (en) * 1989-05-15 1991-09-24 Asten Group, Inc. Papermakers fabric for corrugation machines
US5104726A (en) * 1989-12-29 1992-04-14 Woven Electronics Corporation Woven fabric and process for reinforced structural composites
GB9001358D0 (en) * 1990-01-20 1990-05-30 Scapa Group Plc Deformable fabric for composite materials
FR2691174B1 (fr) * 1992-05-15 1994-07-29 Aerospatiale Procede de tissage d'armature epaisse a couches multiples indelaminables pour materiaux composites et machine a tisser pour sa mise en óoeuvre.
US5456974A (en) * 1993-03-12 1995-10-10 Lundblad; Wayne E. Ballistic resistant article comprising a three dimensional interlocking woven fabric
US5713397A (en) * 1996-08-09 1998-02-03 Wangner Systems Corporation Multi-layered through air drying fabric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101529000B (zh) * 2006-10-18 2011-05-11 梅西耶-道提股份有限公司 3d复合织物

Also Published As

Publication number Publication date
DE69805870D1 (de) 2002-07-18
JPH10219545A (ja) 1998-08-18
EP0856601A1 (de) 1998-08-05
US5899241A (en) 1999-05-04
JP3608643B2 (ja) 2005-01-12
FR2759096A1 (fr) 1998-08-07
DE69805870T2 (de) 2003-01-30
FR2759096B1 (fr) 1999-02-26
CA2228793C (fr) 2006-11-21
CA2228793A1 (fr) 1998-08-04

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