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WO2007107376A1 - COMPOSITE CONSTITUE DE DEUX panneaux EN SANDWICH - Google Patents

COMPOSITE CONSTITUE DE DEUX panneaux EN SANDWICH Download PDF

Info

Publication number
WO2007107376A1
WO2007107376A1 PCT/EP2007/002591 EP2007002591W WO2007107376A1 WO 2007107376 A1 WO2007107376 A1 WO 2007107376A1 EP 2007002591 W EP2007002591 W EP 2007002591W WO 2007107376 A1 WO2007107376 A1 WO 2007107376A1
Authority
WO
WIPO (PCT)
Prior art keywords
composite
core
corner region
sandwich panels
cover layers
Prior art date
Application number
PCT/EP2007/002591
Other languages
German (de)
English (en)
Inventor
Ulrich Schwartau
Original Assignee
Innovida Factories, Ltd.
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 Innovida Factories, Ltd. filed Critical Innovida Factories, Ltd.
Publication of WO2007107376A1 publication Critical patent/WO2007107376A1/fr

Links

Classifications

    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure

Definitions

  • the invention relates to a composite of two sandwich panels with a common core, wherein in a corner region of the composite, the core is arranged at right angles.
  • Sandwich panels of this kind are known and familiar to the person skilled in the art in a wide variety of embodiments.
  • a sandwich construction is generally called a structure of several interconnected layers with different properties.
  • the construction of plate-shaped sandwich constructions is usually characterized by the fact that it consists of two outer layers and an intermediate core (or central layer).
  • the aim of this design is, inter alia, to achieve an improved load capacity over the starting materials while saving material and weight.
  • Such a construction usually implies high bending stiffnesses and a high energy absorption capacity, for example when an external force is applied to the cover layer of the sandwich structure. Such an external force occurs, for example, when a jerk force acts on the sandwich structure.
  • Both the outer layers and the core layer must absorb different forces and stresses and be coordinated with each other in the most appropriate way.
  • the core has primarily the task of keeping the two outer layers at a distance and thereby absorb the corresponding forces. Another task of the core is to ensure a shear transfer between the outer layers, as well as layers to stabilize against bumps.
  • the deformation stiffness of a sandwich panel grows with increasing tensile stiffness of the core.
  • a number of structured core designs are known in the art which have been constructed according to manufacturing (or economics) considerations. Furthermore, a number of solid core constructions are known. Previously known cores often have a honeycomb structure.
  • Honeycomb constructions are based on the principle of disc carrying action. The forces can be almost removed in the core by the upright discs. Honeycomb constructions are characterized by their low weight and high compressive strength.
  • the choice of material for the cover layers and the core of sandwich elements is in principle not limited. Through various combinations of materials, the most diverse properties of sandwich elements can be achieved, for example, the fire behavior, the acoustic and mechanical properties.
  • honeycomb constructions are arranged both in the corner area and in the remaining areas of the core.
  • honeycomb constructions are not always able to absorb force effects, for example hard impacts, precisely in the corner region of a composite of sandwich panels.
  • the core idea of the invention is to provide the core in a corner area with a higher density and a higher weight than the remaining areas of the core. Consequently, for example, apart from a honeycomb structure in a corner region of a composite of sandwich panels, other core material for the corner area has a higher density and a higher weight than the honeycomb structure.
  • the composite according to the invention implies that any structures can use materials for the core as long as it is ensured that the core material has a higher density or a higher weight in the corner area than in the remaining areas of the core.
  • the composite Due to the higher weight and higher density in the corner area, force effects due to the increased energy absorption capacity in the corner area can be better absorbed, especially at this critical point of the composite. Due to the fact that the core can still have, for example, a honeycomb structure in the remaining regions, it is further ensured that the composite is characterized by a lightweight construction.
  • an advantageous embodiment of the invention provides that the remaining regions of the core consist of a honeycomb profile material.
  • the corner area consists of a Glasmaschine perennialgelege.
  • Glasmaschinegelege is characterized by a high density and thus by a high Weight off.
  • Fiberglass is therefore the ideal supplement in the corner area.
  • upper cover layers are applied to the corner region, a colored cover material being arranged between the cover layers and the corner region. In this way, a shine through, for example, a greenish colored fiberglass fabric is avoided.
  • the composite preferably has lower cover layers which do not converge at an opening in the corner region, the opening being closed by a material surface attached to the lower cover layers.
  • a practicable variant of the invention provides that the common core is partially interrupted.
  • the composite according to the invention is a method in which a part of a common core of the composite with two sandwich panels in a corner region of the composite, in which the core is arranged at right angles, is removed, wherein in the removal of the part of the common Kerns also a part of a cover layer of the composite is removed and an opening is formed. Then, an injection of core material through the opening in a resulting cavity of the corner region, wherein the introduced core material having a higher density and a higher weight than the remaining areas of the common core. Finally, in a further process step, the part of the cover layer which has been removed is replaced with a material closed area, wherein as a material surface, a glass fiber surface can be used.
  • a core of sandwich panels is arranged between upper and lower cover layers. According to the method of the invention, part of a lower cover layer (s) is removed in the corner region.
  • claim 12 of the invention provides for the use of the composite according to one of claims 1 to 7 in building construction, shipbuilding, aircraft construction, shell construction, finishing, expansion, interior work, for the sound and heat protection and for interior decoration before.
  • Fig. 1 a sectional view of a composite according to the invention.
  • FIG. 1 a composite according to the invention is designated by reference numeral 100.
  • the composite has two sandwich panels 19, 20 with a common core 10.
  • the sandwich panels 19, 20 can be joined together by mitring.
  • the composite 100 also has a corner region 15, in which the core 10 is arranged at right angles. It is essential for the invention that the core 10 in the corner region 15 has a higher density and a higher weight than in the conventional rigen areas of the core 10 has.
  • the corner region 15 consists of a Glasmaschine perennialgelege and the remaining regions of the core 10 of a honeycomb profile material 17th
  • Cover layers 12, 14 are applied both to the corner region 15 and to the remaining region of the core 10, with a colored cover material 18 being arranged between the cover layers 12, 14 and the corner region 15. In this way, a shine through, for example, a greenish colored fiberglass fabric is avoided.
  • the composite 100 has lower cover layers 11, 13 which do not converge at an opening 21 in the corner region 15 and which also serve as lower cover layers 11, 13 for the remaining regions of the core.
  • This structural measure takes into account the production of the composite 100. Namely, for the production of the composite 100, a part of the common core 10 of the composite 100 is first removed in the corner region 15, thus also a part of the lower cover layers 11, 13 are removed, so that preferably the opening 21 is formed. Then, core material is injected into the resulting cavity of the corner region 15, the introduced core material according to the invention having a higher density and a higher weight than the remaining regions of the common core. Finally, the material surface 16 closes the opening 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un composite (100) constitué de deux panneaux en sandwich (19, 20) à âme (10) commune, l'âme étant disposée perpendiculairement dans une zone de coin (15) du composite (100). Pour améliorer ce composite (100) de panneaux en sandwich (19, 20) de telle sorte que le composite (100) présente une capacité accrue de reprise d'énergie dans sa zone de coin (15) tout en étant léger, on propose que l'âme présente dans la zone de coin (15) ou dans des parties de la zone de coin (15) une densité plus élevée et un poids plus élevé que dans les autres parties de l'âme (10).
PCT/EP2007/002591 2006-03-23 2007-03-23 COMPOSITE CONSTITUE DE DEUX panneaux EN SANDWICH WO2007107376A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006004646U DE202006004646U1 (de) 2006-03-23 2006-03-23 Verbund von zwei Sandwichplatten
DE202006004646.1 2006-03-23

Publications (1)

Publication Number Publication Date
WO2007107376A1 true WO2007107376A1 (fr) 2007-09-27

Family

ID=38069046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/002591 WO2007107376A1 (fr) 2006-03-23 2007-03-23 COMPOSITE CONSTITUE DE DEUX panneaux EN SANDWICH

Country Status (2)

Country Link
DE (1) DE202006004646U1 (fr)
WO (1) WO2007107376A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733033B2 (en) 2008-06-27 2014-05-27 Millport Associates, SA Sandwich panel ground anchor and ground preparation for sandwich panel structures
US8782991B2 (en) 2008-07-10 2014-07-22 Millport Associates S.A. Building roof structure having a round corner
US8875475B2 (en) 2013-03-14 2014-11-04 Millport Associates S.A. Multiple panel beams and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007041282B4 (de) * 2007-08-31 2009-05-07 Airbus Deutschland Gmbh Sandwichbauteilanordnung mit einem L-förmigen oder T-förmigen Element und Verfahren zur Herstellung derselben
TW201251558A (en) * 2011-06-14 2012-12-16 Compal Electronics Inc Method for manufacturing three-dimentional workpiece

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2154655A1 (en) * 1971-09-27 1973-05-11 Kunz Bernard Honeycomb panel joints - bonding panels together by use of resin impregnated rovings
DE2914576A1 (de) * 1978-04-12 1979-10-25 Vittorio Norzi Sandwichplatte, methode und einrichtung zu deren herstellung
US4336090A (en) * 1980-06-30 1982-06-22 The Boeing Company Method of making sandwich panel
EP0105411A2 (fr) * 1982-09-30 1984-04-18 Perstorp Warerite Limited Procédé pour former un produit laminé et produit obtenu à partir de ce procédé
WO1984004727A1 (fr) * 1983-05-27 1984-12-06 Boeing Co Panneau structural leger et retardant le feu
EP0438766A2 (fr) * 1990-01-25 1991-07-31 BASF Aktiengesellschaft Laminés ayant une stabilité augmentée des bords

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3227949A1 (de) * 1981-07-31 1983-02-17 Otto Friedrich 5760 Saalfelden Reitz Verfahren und leiste zur herstellung von gerundeten kanten beim bau von kabinen oder dergleichen, insbesondere von wohnwagenaufbauten
DE8518938U1 (de) * 1985-06-29 1985-08-22 Th. Goldschmidt Ag, 4300 Essen Abgerundetes Winkelprofil, insbesondere für Fassadenelemente
AT388704B (de) * 1986-06-12 1989-08-25 Isovolta Laminatplatte sowie daraus hergestellter bauteil mit zumindest einem gerundeten oberflaechenbereich
DE8915724U1 (de) * 1989-12-14 1991-05-16 Finkensiep, Gerd, 5810 Witten Leichtbauplatte, insbesondere für den Fahrzeugbau
DE29609442U1 (de) * 1996-05-28 1996-09-26 Steinhoff Laminat GmbH, 37327 Leinefelde Formteil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2154655A1 (en) * 1971-09-27 1973-05-11 Kunz Bernard Honeycomb panel joints - bonding panels together by use of resin impregnated rovings
DE2914576A1 (de) * 1978-04-12 1979-10-25 Vittorio Norzi Sandwichplatte, methode und einrichtung zu deren herstellung
US4336090A (en) * 1980-06-30 1982-06-22 The Boeing Company Method of making sandwich panel
EP0105411A2 (fr) * 1982-09-30 1984-04-18 Perstorp Warerite Limited Procédé pour former un produit laminé et produit obtenu à partir de ce procédé
WO1984004727A1 (fr) * 1983-05-27 1984-12-06 Boeing Co Panneau structural leger et retardant le feu
EP0438766A2 (fr) * 1990-01-25 1991-07-31 BASF Aktiengesellschaft Laminés ayant une stabilité augmentée des bords

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733033B2 (en) 2008-06-27 2014-05-27 Millport Associates, SA Sandwich panel ground anchor and ground preparation for sandwich panel structures
US8782991B2 (en) 2008-07-10 2014-07-22 Millport Associates S.A. Building roof structure having a round corner
US8875475B2 (en) 2013-03-14 2014-11-04 Millport Associates S.A. Multiple panel beams and methods

Also Published As

Publication number Publication date
DE202006004646U1 (de) 2007-08-09

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