EP3032210B1 - Impact protective multi-layered fabric - Google Patents

Impact protective multi-layered fabric Download PDF

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Publication number
EP3032210B1
EP3032210B1 EP14382500.8A EP14382500A EP3032210B1 EP 3032210 B1 EP3032210 B1 EP 3032210B1 EP 14382500 A EP14382500 A EP 14382500A EP 3032210 B1 EP3032210 B1 EP 3032210B1
Authority
EP
European Patent Office
Prior art keywords
closed
layers
folds
layer
fabric according
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
EP14382500.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3032210A1 (en
Inventor
Javier Toral Vázquez
Pablo GOYA ABAURREA
Esteban Martino Gonzales
Diego Folch Cortes
Vasilis Votsios
Michel Fouinnetau
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.)
Airbus Operations SL
Airbus Operations SAS
Original Assignee
Airbus Operations SL
Airbus Operations SAS
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 Airbus Operations SL, Airbus Operations SAS filed Critical Airbus Operations SL
Priority to EP14382500.8A priority Critical patent/EP3032210B1/en
Priority to ES14382500.8T priority patent/ES2650377T3/es
Priority to CN201510903682.1A priority patent/CN105696144B/zh
Priority to US14/963,535 priority patent/US20160161223A1/en
Publication of EP3032210A1 publication Critical patent/EP3032210A1/en
Application granted granted Critical
Publication of EP3032210B1 publication Critical patent/EP3032210B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0471—Layered armour containing fibre- or fabric-reinforced layers
    • F41H5/0485—Layered armour containing fibre- or fabric-reinforced layers all the layers being only fibre- or fabric-reinforced layers
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0035—Protective fabrics
    • D03D1/0052—Antiballistic fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used

Definitions

  • the present invention refers to impact absorbing woven fabrics for impact protection or ballistic applications.
  • An object of the present invention is to increase the impact energy absorption capability of a dry-fabric material, namely a textile material, without increasing the weight of the same.
  • two distinct groups of yarns are interwoven with each other, generally warp yarns run length-wise and weft yarns runs transversally to the warp yarns.
  • two or more layers of woven fabric are bonded together to produce a multi-layer structure, for example various layers may be layered up and then joined together by a resin.
  • multiple layers of woven fabric are stacked and then stitched together.
  • the layers can be stacked without any resin, and in the case of ballistic protection for vehicles (hard protection), the layers can be bonded together with a resin.
  • FIG. 1 The behaviour of dry-fabrics when impacted is shown in Figure 1 .
  • the impact pushes the layer (1) out of plane (drawing 1A) and they react as a membrane absorbing the impact load in tension.
  • the layer (1) breaks when the absorbed energy (Eabs1) reaches the ultimate tensile strength absorbing energy ( ⁇ max) and decelerating the impactor (2) (drawing 1B).
  • Patent US-4443506 discloses a bulletproof arrangement of woven, knitted or the like fabrics comprised of highly strong fibers comprises at least one continuous material web which forms a plurality of folds which overlap one another like fish-scales.
  • the invention relates to a fabric according to claim 1. Preferred embodiments are specified in the dependent claims.
  • the invention improves the energy absorption capability of dry fabrics, by folding a fabric layer to form one or more folds or loops (in a cross-sectional view), and by stitching the loops, such as, when the fabric layer receives an impact, the fold would open or deploy and the stitches would break sequentially, thereby absorbing impact energy.
  • One aspect of the invention refers to a fabric structure capable of providing protection against impacts, wherein the fabric structure is formed by a plurality of woven layers of a dry-fabric material, placed on top of each to form a pile or stack of layers.
  • the invention is characterized in that at least one of said layers of the pile of layers, is conformed such as the layer forms at least one closed fold in the form of a pocket, which extends longitudinally across the layer, for example extending from one edge of the layer to the opposite edge.
  • a dry-fabric is a textile material without resin, that is, a material formed by fibers grouped to form strings, wherein these strings are interlaced.
  • Said pocket-like fold of that layer has first and second walls placed one in front of the other, and these two walls are stitched to each other by means of at least one yarn or thread of a dry-fabric material. These two walls are stitched in the entire extension or at least a major part of the extension of the closed fold.
  • first and second walls of the closed fold are stitched to each other by means of several stitching lines, such as each stitching line extends along the closed fold, that is, each stitching line is placed according to the longitudinal direction of the closed fold.
  • the stitching lines within the same closed fold are arranged one above the other.
  • the plurality of layers forming the same would expand such as the fold would the forced to unfold or deploy, and the stitching lines would break sequentially, from the one closer to the entrance of the fold towards the one closer to the bottom of the same.
  • the fabric of the invention can be used for protecting a part of an aircraft against engine debris, from intermediate to high speed impacts, especially for protecting an aircraft fuselage in the case of an Open Rotor aircrafts, against accidental blade release threats.
  • the invention can also be applicable for engine debris protections of any type of engine (Turbofan, Turboprop, gas generator, etc) and even other more classical (low speed) impact threats, even for ballistic protections for personal or material shielding.
  • Drawing 2A shows a dry-fabric layer (1) for impact protection conformed to have at least one closed fold (3), obtained by folding the layer (1) along a folding (straight) line (4) across the layer, such as the major part of the layer (1) remains substantially flat and at least one closed fold (3) in the form of a channel or pocket is formed in the layer, having first and second walls (5,6) substantially facing each other.
  • Each closed fold (3) extends across the layer (1) in a longitudinal direction from one edge to the other edge (1',1") of the layer. Furthermore, the first and second walls (5,6) of each closed fold (3), are stitched to each other by means of one or more yarns (7) made of a dry-fabric material, that is, a textile material. First and second walls (5,6) are in contact with each other due to the stitching, although in the figures are shown spaced apart from each other for the sake of clarity of the illustration.
  • the stitching is designed in a way that the stitches would break sequentially, that is, one after the other, until the stress in the layer achieves its maximum tensile strength.
  • the first and second walls (5,6) of the closed fold (3) are stitched to each other by means of two or more stitching lines (8), each stitching line extending along the closed fold and in major part of the length of the same, and wherein said stitching lines (8) are arranged one above the other.
  • each stitching line (8) is lying on an imaginary plane, and all the planes are parallel to each other.
  • the energy absorption capability of the layer of the invention (Eabs2). is increased with respect to the prior art (Eabs1), as it observed in the graph of drawing 2B compared with the graph of drawing 1B, such as (Eabs2) >> (Eabs1).
  • the graph of drawing 1B has a serrated shape, wherein each peak corresponds to the energy absorbed by one stitching line (8).
  • This configuration of the dry fabric layer according to the invention improve the protection performance of any dry fabric of the prior art in a very simple manner and more importantly, without increasing its weight.
  • a pile or stack of fabric layers (1a,1b,1c) are provided forming a multi-layered structure (9) as shown in drawings 4A,B, wherein all the layers (1a,1b,1c) of the structure or only some of them are provided with closed folds (3).
  • At least one of the layers (1a,1b,1c) comprises two or more closed folds (3), each closed fold extends longitudinally across the layer in which there are formed, and wherein the two or more closed folds are arranged substantially parallel to each other. All the folds of the multi-layered structure (9), are arranged in the same longitudinal direction.
  • any possible relative position between closed folds (3) of different layers is possible.
  • the closed folds (3) of different layers (1a,1b,1c) are arranged right one above the other and are aligned in groups defining a grid-like pattern.
  • the closed folds (3) of different layers (1a,1b,1c) are interleaved.
  • the closed folds (3) are bended such as the first and second walls (5,6) of each closed fold, are substantially parallel with the layer (1a,1b,1c) in which they are formed.
  • first and second walls (5,6) the closed folds (3) are substantially perpendicular or straight to the layer(1a,1b,1c) in which they are formed.
  • the layers of the pile of layers may be joined together by means of stitches provided a specific positions of the pile, as to maintain the pile together, however those stitches would not provide resistance to impacts.
  • Preferred materials for the woven fabric are:
  • Preferred materials for the stitching yarn are:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
EP14382500.8A 2014-12-09 2014-12-09 Impact protective multi-layered fabric Active EP3032210B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14382500.8A EP3032210B1 (en) 2014-12-09 2014-12-09 Impact protective multi-layered fabric
ES14382500.8T ES2650377T3 (es) 2014-12-09 2014-12-09 Tejido multicapa de protección contra impactos
CN201510903682.1A CN105696144B (zh) 2014-12-09 2015-12-09 冲击保护性多层织物
US14/963,535 US20160161223A1 (en) 2014-12-09 2015-12-09 Impact protective multi-layered fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14382500.8A EP3032210B1 (en) 2014-12-09 2014-12-09 Impact protective multi-layered fabric

Publications (2)

Publication Number Publication Date
EP3032210A1 EP3032210A1 (en) 2016-06-15
EP3032210B1 true EP3032210B1 (en) 2017-07-19

Family

ID=52146388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14382500.8A Active EP3032210B1 (en) 2014-12-09 2014-12-09 Impact protective multi-layered fabric

Country Status (4)

Country Link
US (1) US20160161223A1 (es)
EP (1) EP3032210B1 (es)
CN (1) CN105696144B (es)
ES (1) ES2650377T3 (es)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519529A (en) * 1967-02-13 1970-07-07 Goodyear Aerospace Corp Puncture resistant laminate with crinkled film layer
DE3150725A1 (de) * 1981-12-22 1983-06-30 Horst Schmolmann Beschusssichere faltenkonstruktion
US5723201A (en) * 1996-05-22 1998-03-03 Czetto, Jr.; Paul Penetration resistant protective armor construction
CA2390119C (en) * 1999-11-03 2009-05-19 Oy Oms Optomedical Systems Ltd. Elastic composite structure
MXPA04007602A (es) * 2002-02-08 2004-11-10 Teijin Twaron Gmbh Material resistente objetos punzocortantes y antibalas y metodo para elaborarlo.
US20100313321A1 (en) * 2009-06-11 2010-12-16 Carlson Richard A Pleated ballistic package for soft body armor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN105696144A (zh) 2016-06-22
ES2650377T3 (es) 2018-01-18
EP3032210A1 (en) 2016-06-15
US20160161223A1 (en) 2016-06-09
CN105696144B (zh) 2019-06-04

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