EP4334631A1 - Emballage constitué de matière plastique composite renforcée par des fibres pour enveloppe de récipient de voyage dans l'espace - Google Patents

Emballage constitué de matière plastique composite renforcée par des fibres pour enveloppe de récipient de voyage dans l'espace

Info

Publication number
EP4334631A1
EP4334631A1 EP22723966.2A EP22723966A EP4334631A1 EP 4334631 A1 EP4334631 A1 EP 4334631A1 EP 22723966 A EP22723966 A EP 22723966A EP 4334631 A1 EP4334631 A1 EP 4334631A1
Authority
EP
European Patent Office
Prior art keywords
wrapping
strip
tape
longitudinal direction
fiber bundles
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.)
Pending
Application number
EP22723966.2A
Other languages
German (de)
English (en)
Inventor
Dieter Grebner
Philipp HEHER
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.)
Peak Technology GmbH
Original Assignee
Peak Technology GmbH
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 Peak Technology GmbH filed Critical Peak Technology GmbH
Publication of EP4334631A1 publication Critical patent/EP4334631A1/fr
Pending legal-status Critical Current

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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/24—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using threads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
    • B29C53/785—Winding and joining, e.g. winding spirally helically using profiled sheets or strips with reinforcements
    • 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
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/07—Parts immersed or impregnated in a matrix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/40—Arrangements or adaptations of propulsion systems
    • B64G1/402—Propellant tanks; Feeding propellants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0609—Straps, bands or ribbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/067—Synthetics in form of fibers or filaments helically wound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space
    • F17C2270/0194—Applications for fluid transport or storage in the air or in space for use under microgravity conditions, e.g. space

Definitions

  • the invention relates to a wrapping made of a fiber-reinforced plastic for a space container jacket and to a wrapping tape for such a wrapping.
  • Space container shells such as those used in pressure vessels of e.g. Such a pressure vessel is known, for example, from US 20120241459 A1.
  • COPV composite overwrapped pressure vessels
  • the space vessel shell is usually subjected to a fiber winding process, in which fibers, for example carbon fibers, are pre-impregnated with a reaction resin and then fed to the vessel shell to be wrapped using a predetermined winding pattern.
  • fibers for example carbon fibers
  • a predetermined winding pattern Such a wrapping of fiber composite plastics is associated with particularly advantageous increases in strength due to the high tensile strength of the fiber strand combined with the low weight of the pressure vessel.
  • Due to the usually high combustion temperatures of the fibers, these set when re-entering the Earth's atmosphere represents an insulating layer for the metallic space container shell, which causes poorer glowing behavior compared to a container shell without wrapping.
  • the fact that neither the wrapping nor the container jacket underneath can be adequately degraded when re-entering the earth's atmosphere results in an increased risk of space debris hitting the earth's surface.
  • the invention is therefore based on the object of designing a wrapping of the type described at the outset in such a way that, particularly in connection with space containers, despite good strength properties and simple production using common filament winding processes, the most complete possible annealing is provided when re-entering the earth's atmosphere.
  • the wrapping comprises at least one wrapping tape made of a plastic matrix, in which at least two tape layers arranged one above the other in a tape transverse direction and each consisting of several fiber bundles extending unidirectionally in the tape longitudinal direction are embedded, with adjacent fiber bundles of a tape layer in the tape longitudinal direction abutting areas provided at least once per winding turn directly adjoin one another and adjacent fiber bundles in the transverse direction of the strip are offset from one another, forming an overlapping area in the longitudinal direction of the strip.
  • a wrapping which is characterized by several fiber bundles, which are connected to one another by the plastic matrix in such a way that the fiber bundles of a tape layer in immediately adjacent to the joint areas.
  • a fiber bundle is understood to mean a group of individual fibers which are cut or end at the beginning and end of the fiber bundle.
  • the annealing behavior of the wrapped space container can be significantly improved upon re-entry into the earth's atmosphere, because after pyrolysis of the plastic matrix, the fiber bundles embedded in it can be effectively released by aerodynamic shear forces, so that the underlying container jacket is subsequently sufficiently exposed for reliable melting and not by fibers with an insulating effect is prevented from melting.
  • additional stress concentrations are introduced into the wrapping due to the joint areas formed solely by the plastic matrix, sufficient rigidity or strength of the wrapping can still be achieved in practice if the wrapping tape has at least two tape layers arranged one above the other in a tape transverse direction, with adjacent tape layers in the tape transverse direction Fiber bundles are offset from one another in the longitudinal direction of the strip, forming an overlapping area.
  • the overlaps according to the invention not only produce the tensile strength required for wrapping, but also reduce the effect of stress concentration.
  • the number of fiber bundles per layer of tape must be selected so that there is at least one joint area for each winding turn of the wrapping tape, i.e. also for each winding turn around the space container jacket to be wrapped. In order to achieve the best possible strength values for the wrapping, it is recommended that the overlapping area extend over at least 1 cm in the longitudinal direction of the tape.
  • the butt areas of the adjacent fiber bundles in the transverse direction of the strip and the associated stress concentration points occurring there are offset by at least 1 cm in the longitudinal direction of the strip, so that an improved distribution of stress in the longitudinal direction of the strip is achieved.
  • Particularly favorable strength conditions result when fiber bundles adjoining one another in the longitudinal direction of the tape have abutting surfaces which are inclined to the normal cross-sectional area of the wrapping tape.
  • the fiber bundles are formed in a busted manner in the joint area with respect to the direction of the strip width.
  • the invention also relates to a wrapping tape for a wrapping as described above.
  • a plastic matrix is provided in which at least two layers of tape arranged one above the other in a transverse direction of the tape and each consisting of several fiber bundles extending unidirectionally in the longitudinal direction of the tape are embedded, with adjacent fiber bundles of a tape layer in the longitudinal direction of the tape adjoining at least one intended joint area at predetermined intervals. Fiber bundles that are adjacent in the transverse direction of the strip are offset from one another in the longitudinal direction of the strip, forming an overlapping area.
  • the plastic matrix is preferably a duroplastic Flaz.
  • the fiber bundles can be formed from fiber types such as carbon fibers, aramid fibers, glass fibers and/or from PE-UFIMW fibers.
  • a wrapping tape only has fiber bundles that contain only a single fiber type, or that there is a combination of fiber bundles of different fiber types . Provision can also be made for the fiber bundles themselves to be formed from a combination of different fiber types.
  • the mechanical properties of the wrapping tape or the wrapping can be defined in a particularly favorable manner, taking into account the respective different stiffness, tensile strength, ductility, etc. of the fiber types used.
  • wrapping tapes it can be provided, for example, that at least two continuous fiber-reinforced wrapping tapes pre-impregnated with a duroplastic resin as a plastic matrix are first cut into several tape sections, after which the resin of the respective tape sections that has not yet hardened is softened by the application of heat and the tape sections are joined together to form the wrapping tape according to the invention connected via the plastic matrix.
  • the prefabricated wrapping tape formed in this way can then be used in a known fiber winding process.
  • FIG. 1 shows a schematic longitudinal section through a wrapping tape according to the invention
  • FIG. 2 shows a schematic plan view of the wrapping tape from FIG. 1; and
  • FIG. 3 shows a schematic oblique view of a space container jacket which has a wrapping according to the invention.
  • a wrapping according to the invention made of a fiber-reinforced plastic comprises at least one wrapping tape 1 made of a plastic matrix 2, in which at least two tape layers 3, 4 arranged one above the other in a tape transverse direction y and each consisting of several fiber bundles 5 extending unidirectionally in the tape longitudinal direction x are embedded.
  • the number of fiber bundles 5 per tape layer 3 or 4 must be selected such that in the longitudinal direction of the tape x adjacent fiber bundles 5 of a tape layer 3 or 4 in each winding turn of the wrapping tape , and thus ever Winding turn of a container jacket to be wrapped, at least once provided butt areas 6 directly adjoin each other.
  • Fiber bundles 5 adjacent in the transverse direction y of the strip are offset from one another in the longitudinal direction x of the strip, forming an overlapping region 7 .
  • the overlaps according to the invention not only allow the tensile strength required for a wrapping to be produced, but also the effect of the stress concentrations caused by the butt areas 6 to be reduced.
  • the overlapping area 7 preferably extends over at least 1 cm in the longitudinal direction x of the strip.
  • FIG. 3 shows a schematic oblique view of a space container jacket 8 which has a wrapping according to the invention, which is applied to the space container jacket 8 using a predetermined winding pattern.
  • the wrapping tape 1 has at least one butt region 6 for each winding turn of the space container casing 8 to be wrapped.
  • FIG. 2 For the sake of clarity, only four such impact areas 6 have been drawn in FIG. 2, which are intended to be representative of the entire impact areas 6 that occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un emballage constitué d'une matière plastique composite renforcée par des fibres pour une enveloppe de récipient de voyage dans l'espace. Afin de concevoir un emballage du type en question de telle sorte qu'il y a, en particulier dans le cadre de récipients de voyage dans l'espace, une combustion aussi complète que possible pendant l'entrée dans l'atmosphère terrestre malgré de bonnes propriétés de résistance et une fabrication simple au moyen de procédés d'enroulement de filament classiques, selon l'invention, l'emballage comprend au moins une bande (1) d'emballage constituée d'une matrice plastique (2), dans laquelle au moins deux couches (3, 4) de bande qui sont disposées l'une au-dessus de l'autre dans une direction transversale (y) de bande et qui sont chacune constituées d'une pluralité de faisceaux de fibres (5) s'étendant de manière unidirectionnelle dans la direction longitudinale (x) de bande sont incorporées, les faisceaux de fibres (5) d'une couche (3, 4) de bande qui sont adjacents dans la direction longitudinale (x) de bande étant directement contigus les uns aux autres dans des zones de butée (6) prévues au moins une fois par tour d'enroulement, et des faisceaux de fibres (5) adjacents dans la direction transversale (y) de bande étant décalés les uns par rapport aux autres dans la direction longitudinale (x) de bande de manière à former une région de chevauchement (7).
EP22723966.2A 2021-05-06 2022-05-04 Emballage constitué de matière plastique composite renforcée par des fibres pour enveloppe de récipient de voyage dans l'espace Pending EP4334631A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50349/2021A AT524873B1 (de) 2021-05-06 2021-05-06 Umwicklung aus einem Faserverbundkunststoff für einen Raumfahrtbehältermantel
PCT/AT2022/060155 WO2022232858A1 (fr) 2021-05-06 2022-05-04 Emballage constitué de matière plastique composite renforcée par des fibres pour enveloppe de récipient de voyage dans l'espace

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CN118770582B (zh) * 2024-08-01 2025-11-14 大连理工大学 一种变厚度低温贮箱薄壁金属内胆

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SA523451435B1 (ar) 2025-04-26
WO2022232858A1 (fr) 2022-11-10
AT524873A4 (de) 2022-10-15
US20240240752A1 (en) 2024-07-18
AT524873B1 (de) 2022-10-15
US12498086B2 (en) 2025-12-16
JP2024517452A (ja) 2024-04-22

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