US20110165385A1 - Sandwich panel and method for producing such a panel - Google Patents

Sandwich panel and method for producing such a panel Download PDF

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Publication number
US20110165385A1
US20110165385A1 US13/054,637 US200913054637A US2011165385A1 US 20110165385 A1 US20110165385 A1 US 20110165385A1 US 200913054637 A US200913054637 A US 200913054637A US 2011165385 A1 US2011165385 A1 US 2011165385A1
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US
United States
Prior art keywords
core element
following
flexible material
strip
panel
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.)
Abandoned
Application number
US13/054,637
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English (en)
Inventor
Johannes Hendricus Alphonsus Peeters
Cornelis Henricus Honselaar
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.)
Fibercore Europe BV
FiberCore IP BV
Original Assignee
Fibercore Europe BV
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 Fibercore Europe BV filed Critical Fibercore Europe BV
Assigned to FIBERCORE IP B.V. reassignment FIBERCORE IP B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HONSELAAR, CORNELIS HENRICUS, PEETERS, JOHANNES HENDRICUS ALPHONSUS
Publication of US20110165385A1 publication Critical patent/US20110165385A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • 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
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/008—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having hollow ridges, ribs or cores
    • 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
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B29D99/0021—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with plain or filled structures, e.g. cores, placed between two or more plates or sheets, e.g. in a matrix
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1018—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using only vacuum
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/772—Articles characterised by their shape and not otherwise provided for
    • 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
    • B32B2305/22—Fibres of short length
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities

Definitions

  • the invention relates to sandwich panels of fiber-reinforced plastics materials, which are particularly suitable for relatively high loads.
  • sandwich panels are cited which can be used for the deck of a bridge or as a self-supporting bridge construction.
  • the panel must be able to withstand the heavy loads of road traffic.
  • These loads take different forms. It is firstly a matter of the total weight of traffic present on a bridge, which manifests itself in bending and torsion of the panel between the supports thereof.
  • account must be taken of local loads, such as caused by the wheel load of heavy freight traffic, to which the surface of the sandwich panel, in particular, is exposed.
  • bridge decks from materials other than steel or concrete are sought.
  • One example of such an alternative is provided by the bridge decks produced from fiber-reinforced plastics laminates.
  • Such a bridge deck can be produced with suitable templates in a variety of different forms.
  • the total resistance of such a bridge deck with regard to general bending and torsion is excellent, such that panels produced in this way could withstand the heaviest loads of heavy freight traffic.
  • a drawback of fiber-reinforced plastic laminates is however their relatively low resistance to local loads or point loads, that is to say a static load or an impact load. It is precisely such loads which can cause damage in the panel, resulting in a delamination or detachment of the outer skin from the sandwich panel which gets progressively worse under the influence of the passing traffic.
  • a panel having mutually averted panel surfaces and a periphery which delimits the panel surfaces, comprising a series of parallelly positioned, elongated core elements, as well as material strips which are affixed to the core elements and which each extend between respectively two neighboring core elements and along both panel surfaces, is known from WO-A-9009880.
  • the sole object which is aimed for with this known construction is the enlargement of the contact surface between the web plates and the skin.
  • the object of the invention is to provide a sandwich panel which is made up of fiber-reinforced plastic components and which nevertheless meets the requirements with regard to point and impact loads. This object is achieved by virtue of the fact that those portions of the material strips which extend along the panel surfaces extend over a plurality of core elements.
  • a series of parallelly positioned core elements is meant a multiplicity of core elements which are located side by side and/or one upon the other, such that the product thus formed has a width and/or height amounting to a multiple of the width and/or height of a core element.
  • the cores and the material strips can be loosely stacked.
  • a glue, or a mechanical joint, can here possibly be used to obtain a temporary connection.
  • the material strips are affixed to the core elements, that is to say following injection and setting of the resin.
  • the panel according to the invention consists of a large number of core elements extending parallelly alongside one another, which are mutually connected by the material strips which extend over, under and between the core elements.
  • the panel surfaces (the skins) and surfaces extending between respectively two neighboring core elements (the web plates) of the sandwich panel are made up of the same material strips.
  • a distinction can always at least partially be drawn between material strips used for the web plates, on the one hand, and material strips used for the skins, on the other hand.
  • such a construction according to the invention ensures a particularly robust mutual connection of the core elements and skins.
  • the skins thus formed and the ribs formed between the core elements are integrally connected to one another.
  • the ribs merge directly into the skins, which skins consist of those parts of the material strips, stacked obliquely one above the other, which extend over the panel surfaces. There is hence no danger of delamination between the ribs and the skins. Consequently, the panel which is thus obtained can comfortably meet the requirements with regard to bending and torsion and impact load.
  • the core elements which are here used can possess different cross sectional forms, such as square, rectangular, but triangular cross sectional forms are also possible. In this last variant, including viewed in the transverse direction of the sandwich panel, the forces can be readily transmitted.
  • the core elements can be of tubular construction, though solid core elements may also be used.
  • the panel surfaces of the panel thus obtained are formed by the core elements, as well as by those portions of the various material strips which extend thereover. These material strips are stacked one upon the other; the number in the stack can be varied by adjusting the width, that is to say the dimension of material strips transversely to the longitudinal direction of the core elements. If now a large local load or point load is applied to such a sandwich panel, such as caused, for example, by the above-described falling-off freight, the surface of the sandwich panel can get damaged. This implies that locally the material strips are damaged and that possibly one or some of the core elements are likewise damaged.
  • the important advantage of the sandwich panel according to the invention is, however, that this damage has a very local character and does not display a tendency to spread over the rest of the construction. Even though one or some material strips and core elements are locally damaged, because the rest of the material strips and core elements, that is to say in the transverse direction beyond the damage, remains intact, those parts of the material strips which are found there are capable of maintaining the integrity of the panel in the direction of overstress.
  • the material strips can extend in a variety of ways relative to the core elements. According to a first option, the material strips can each comprise a portion located between two neighboring core elements, a portion extending over one neighboring element and along one panel surface, as well as a portion extending over the other neighboring core element and along the other panel surface. In such a case, the material strips possess essentially a Z-shape.
  • the material strips can each extend over one and the same neighboring element and along both panel surfaces.
  • the material strips possess essentially tilted U-shape.
  • those portions of the material strips which are located along the panel surfaces extend over a plurality of core elements.
  • the material strips forming the panel surface describe an angle of inclination of 20 degrees or less relative to the transverse direction of the panel.
  • material strips can comprise a portion located between two neighboring core elements and extending only over a portion of these core elements, as well as a portion extending only along a panel surface.
  • core elements close to both panel surfaces can be provided with material strips, which comprise a portion located between two neighboring core elements and extending only over a portion of these core elements, as well as a portion extending only along a panel surface.
  • the invention further relates to a method for producing a panel, such as for a bridge deck, comprising the following steps:
  • This method is characterized by the fitting of the following strip of flexible material over the top face of a following core element, as well as over the preceding strip of flexible material extending over the top face of a preceding core element.
  • a panel which consists of a large number of core elements extending parallelly alongside one another, which are mutually connected by the strips of flexible material folded essentially into a Z-shape, which extend over, under and between the core elements.
  • the method according to the invention can be implemented in a variety of ways; preferably, however, a template is used herein.
  • the method comprises the following steps:
  • the shape of the template is here pre-chosen such that the desired shape of the panel is obtained, for example with a slight curvature in the longitudinal direction, in the transverse direction, etc.
  • the panel surfaces of the panel are formed by the core elements and by the strips of flexible material extending thereover.
  • the total thickness of these surfaces of the panels can be enlarged by making the various strips of flexible material extend more or less far over one another. If, for example, each strip of flexible material extends over three or more core elements, a triple-layered or multilayered surface is also formed. As already stated, this is obtained by the step of:
  • the thickness of the surface can thus be influenced by the step of:
  • the strength and stiffness characteristics of the panel are influenced by the nature of the strips of flexible material.
  • the method according to the invention can here comprise the steps of using strips of flexible material which comprise a fabric, and of aligning the threads in the longitudinal direction of the core elements.
  • the method according to the invention can comprise the steps of using strips of flexible material which comprise a fabric, and of aligning the threads of the fabric in the transverse direction of the core elements.
  • a variant of the method for producing a panel comprises the following steps:
  • This method is characterized by the fitting of the following strip of flexible material over a following core element, as well as over the preceding strip of flexible material extending over a preceding core element.
  • this method can be implemented with the following steps:
  • FIG. 1 shows the manufacture of a first embodiment.
  • FIG. 2 shows a second embodiment
  • FIG. 3 shows a third embodiment.
  • FIGS. 4-6 show the steps in the manufacture of a second embodiment.
  • FIGS. 7-10 show further embodiments.
  • FIG. 1 shows a portion of a template 4 , having a form face 3 .
  • a first core element 1 which is tubular and consists of the top wall 5 , the right-hand side wall 6 , the bottom wall 7 and the left-hand side wall 8 .
  • the core element 1 is covered with a strip of impregnable flexible material 2 .
  • This strip of flexible material 2 has an uppermost portion 9 which is laid over the top wall 5 , a centermost portion 10 which is laid against the right-hand side wall 6 , and a lowermost portion 11 which is laid over the floor 3 of the template 4 .
  • the strip of flexible material 2 has thereby acquired a Z-shape.
  • this portion 9 ′ of the following strip of flexible material 2 ′ can possess such a dimension in the transverse direction to the core elements that this also covers that portion 9 of the strip of flexible material 2 which covers the core element 1 . Depending on the particular dimension, this portion 9 ′ can therefore extend over a plurality of preceding core elements and strips of flexible material.
  • the portion 10 ′ of the following strip of flexible material 2 ′ is laid over the right-hand side wall 6 ′ of the following core element 1 ′ and, finally, the portion 11 ′ of the following strip of flexible material 2 ′ is laid over the floor 3 of the template 4 .
  • This portion 11 ′ of the following strip of flexible material 2 ′ can here also cover a bit of the portion 11 of the previous strip of flexible material 2 , which portion 11 had already been fitted on the floor 3 of the template 4 .
  • the portion 11 can extend under a plurality of following core elements 1 ′′, etc.
  • a plurality of core elements 1 ′, 1 ′′, etc. placed side by side are respectively covered by respective strips of flexible material 2 ′, 2 ′′, etc.
  • FIG. 2 shows an alternative embodiment, wherein the uppermost portion 9 of the strip of flexible material is laid over the core element 1 , the centermost portion 10 extends over the left-hand side wall 8 , and the lowermost portion 11 extends under the bottom wall 7 of this same core element 1 .
  • the strips of flexible material in these are thus shaped according to a tilted U.
  • FIG. 3 shows that the core elements 1 can also possess a triangular shape.
  • FIGS. 4-6 show a possible way of producing the embodiment of FIG. 2 .
  • a first core element 1 is first put in place, over the top face 5 of which a strip of flexible material 1 is laid.
  • a following core element 1 ′ is placed, with thereover a following strip of flexible material 2 ′.
  • These actions are repeated until a stack 12 of the desired height is obtained.
  • This stack is formed by all the core elements 1 , 1 ′, 1 ′′, . . . and the intervening parts 10 , 10 ′, 10 ′′ . . . of the strips of flexible material 2 , 2 ′, 2 ′′, . . . .
  • the parts 9 , 9 ′, 9 ′′, . . . and 11 , 11 ′, 11 ′′, . . . still extend freely beyond the stack 12 .
  • the template 13 Over this stack is then placed the template 13 , the internal contour of which conforms to the shape of the end product which is ultimately to be formed.
  • those parts 9 , 9 ′, 9 ′′, . . . and 11 , 11 ′, 11 ′′, . . . of the strips of flexible material 2 , 2 ′, 2 ′′, . . . which are located beyond the stack 12 are shaped and pressed against the stack 12 .
  • the strips of flexible material are impregnated; following hardening of these strips, the end product 14 is obtained.
  • material strips 2 are used possessing a single portion 9 , 11 which covers a top wall 5 and bottom wall 6 of the core elements 1 , as well as a centermost portion 10 which is located between the core elements 1 and extends only over a portion of these core elements. These centermost portions 10 are connected to each other by the connecting strips 15 .
  • FIG. 8 is broadly consistent with that of FIG. 7 , though the centermost portion 10 is now folded in two and folded back.
  • the connecting strips can in this case be present.
  • material strips 2 are used having a single portion 9 , 11 , which is located along a top wall 5 and bottom wall 6 respectively of the core elements and extends over a plurality of core elements.
  • the middle portion 10 extends over the entire height between the core elements, while, on the rim thereof opposite the rim where the single portion 19 is, a small bent-over portion is present, which extends only over a part of a core element.
  • the middle portions 10 extend over virtually the entire height between the core elements 1 , while the material strips 2 possess only a single portion 9 and 11 respectively, which extends over the top face 5 and bottom face 6 respectively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Bridges Or Land Bridges (AREA)
  • Panels For Use In Building Construction (AREA)
US13/054,637 2008-07-18 2009-07-17 Sandwich panel and method for producing such a panel Abandoned US20110165385A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL2001830 2008-07-18
NL2001830A NL2001830C2 (nl) 2008-07-18 2008-07-18 Sandwichpaneel, alsmede werkwijze voor het vervaardigen van een dergelijk paneel.
PCT/NL2009/050445 WO2010008293A2 (en) 2008-07-18 2009-07-17 Sandwich panel and method for producing such a panel

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2009/050445 A-371-Of-International WO2010008293A2 (en) 2008-07-18 2009-07-17 Sandwich panel and method for producing such a panel

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/688,543 Division US10016948B2 (en) 2008-07-18 2015-04-16 Method for producing sandwich panel

Publications (1)

Publication Number Publication Date
US20110165385A1 true US20110165385A1 (en) 2011-07-07

Family

ID=40673264

Family Applications (2)

Application Number Title Priority Date Filing Date
US13/054,637 Abandoned US20110165385A1 (en) 2008-07-18 2009-07-17 Sandwich panel and method for producing such a panel
US14/688,543 Active 2030-07-01 US10016948B2 (en) 2008-07-18 2015-04-16 Method for producing sandwich panel

Family Applications After (1)

Application Number Title Priority Date Filing Date
US14/688,543 Active 2030-07-01 US10016948B2 (en) 2008-07-18 2015-04-16 Method for producing sandwich panel

Country Status (18)

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US (2) US20110165385A1 (es)
EP (1) EP2303559B3 (es)
CN (1) CN102143836B (es)
AT (1) ATE551176T1 (es)
AU (1) AU2009271785B2 (es)
CA (1) CA2731211C (es)
DK (1) DK2303559T6 (es)
EA (1) EA019588B1 (es)
ES (1) ES2384154T7 (es)
FI (1) FI2303559T6 (es)
HK (1) HK1156281A1 (es)
HR (1) HRP20120525T1 (es)
NL (1) NL2001830C2 (es)
PL (1) PL2303559T6 (es)
PT (1) PT2303559E (es)
SI (1) SI2303559T1 (es)
SM (1) SMT201200032B (es)
WO (1) WO2010008293A2 (es)

Cited By (1)

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US20230047507A1 (en) * 2019-12-16 2023-02-16 Fibercore Ip B.V. Product with an Array of Core Elements or Voids and Interposed Sheets and Methods for forming such a Product

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NL2005508C2 (nl) * 2010-10-13 2012-04-16 Fibercore Europ B V Sandwichpaneel met gekoppelde lijven.
NL2013887B1 (nl) * 2014-11-27 2016-09-23 Fibercore Ip Bv Werkwijze voor het vormen van een kokervormig halffabricaat uit vezelversterkt kunststofmateriaal.
NL2018263B1 (nl) 2017-01-31 2018-08-16 Fibercore Ip Bv Aerodynamisch of hydrodynamisch blad uit gelaagd materiaal
WO2021261990A1 (en) 2020-06-26 2021-12-30 Fibercore Ip B.V. Composite structure, and methods for arranging webs and core elements in manufacturing of a composite structure
WO2022235149A1 (en) 2021-05-03 2022-11-10 InfraCore IP B.V. Structure composed of a plurality of sheets

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US2873008A (en) * 1955-08-26 1959-02-10 Keasbey & Mattison Company Building panel units and roofs or walls made therefrom
US3185611A (en) * 1963-01-14 1965-05-25 C J Rodman Composite coreboard and process for producing same
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WO1990009880A1 (en) * 1989-02-24 1990-09-07 Giovanni Guarnaschelli Load-bearing members of reinforced plastic
US5904972A (en) * 1995-06-07 1999-05-18 Tpi Technology Inc. Large composite core structures formed by vacuum assisted resin transfer molding
US20020090874A1 (en) * 2000-09-08 2002-07-11 Mckague Elbert L. Unitized fastenerless composite structure
EP1596024A1 (en) * 2004-05-11 2005-11-16 Groep Stevens International, Naamloze Vennootschap Reinforced sandwich panel
NL1031768C2 (nl) * 2006-05-08 2007-11-09 Fits Holding B V Hoogbelastbare sandwichstructuur, alsmede werkwijzen voor het vervaardigen daarvan.

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US2833682A (en) * 1953-11-30 1958-05-06 Laszlo Patrick David De Reinforced structures
US2873008A (en) * 1955-08-26 1959-02-10 Keasbey & Mattison Company Building panel units and roofs or walls made therefrom
US3185611A (en) * 1963-01-14 1965-05-25 C J Rodman Composite coreboard and process for producing same
US4411939A (en) * 1979-11-28 1983-10-25 National Research Development Corporation Conformable reinforcement board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230047507A1 (en) * 2019-12-16 2023-02-16 Fibercore Ip B.V. Product with an Array of Core Elements or Voids and Interposed Sheets and Methods for forming such a Product
US11772344B2 (en) * 2019-12-16 2023-10-03 Fibercore Ip B.V. Product with an array of core elements or voids and interposed sheets and methods for forming such a product

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ES2384154T3 (es) 2012-07-02
EP2303559B3 (en) 2023-03-29
PT2303559E (pt) 2012-06-27
FI2303559T6 (fi) 2023-04-27
SI2303559T1 (sl) 2012-08-31
CN102143836A (zh) 2011-08-03
EP2303559B1 (en) 2012-03-28
EP2303559A2 (en) 2011-04-06
WO2010008293A2 (en) 2010-01-21
PL2303559T3 (pl) 2012-09-28
HRP20120525T1 (hr) 2012-08-31
ATE551176T1 (de) 2012-04-15
AU2009271785A1 (en) 2010-01-21
PL2303559T6 (pl) 2024-01-08
WO2010008293A3 (en) 2010-06-17
US20150217521A1 (en) 2015-08-06
DK2303559T3 (da) 2012-07-09
SMT201200032B (it) 2012-09-07
CA2731211C (en) 2017-06-20
ES2384154T7 (es) 2023-07-25
CA2731211A1 (en) 2010-01-21
EA201170226A1 (ru) 2011-10-31
CN102143836B (zh) 2014-08-13
US10016948B2 (en) 2018-07-10
NL2001830C2 (nl) 2010-01-21
HK1156281A1 (en) 2012-06-08
EA019588B1 (ru) 2014-04-30
AU2009271785B2 (en) 2015-08-20
DK2303559T6 (da) 2023-05-01

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