US20070144111A1 - Structural sandwich plate members - Google Patents

Structural sandwich plate members Download PDF

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Publication number
US20070144111A1
US20070144111A1 US10/579,057 US57905704A US2007144111A1 US 20070144111 A1 US20070144111 A1 US 20070144111A1 US 57905704 A US57905704 A US 57905704A US 2007144111 A1 US2007144111 A1 US 2007144111A1
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United States
Prior art keywords
interlayer
plate member
sandwich plate
structural sandwich
member according
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Abandoned
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US10/579,057
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English (en)
Inventor
Stephen Kennedy
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Intelligent Engineering Bahamas Ltd
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Intelligent Engineering Bahamas Ltd
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Assigned to INTELLIGENT ENGINEERING (BAHAMAS) LIMITED reassignment INTELLIGENT ENGINEERING (BAHAMAS) LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KENNEDY, STEPHEN JOHN
Publication of US20070144111A1 publication Critical patent/US20070144111A1/en
Abandoned legal-status Critical Current

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    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B3/26—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B32B3/26—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • 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
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0421—Ceramic layers in combination with metal layers
    • 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
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • 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
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics
    • 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
    • F41H5/0478—Fibre- or fabric-reinforced layers in combination with plastics 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/028—Hollow fillers; Syntactic material
    • 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
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/542—Shear strength

Definitions

  • the present invention relates to structural sandwich plate members which comprise two outer plates and a core of plastics or polymer material bonded to the outer plates with sufficient strength to substantially contribute to the structural strength of the member.
  • Structural sandwich plate members are described in U.S. Pat. No. 5,778,813 and U.S. Pat. No. 6,050,208, which documents are hereby incorporated by reference, and comprise outer metal, e.g. steel, plates bonded together with an intermediate elastomer core, e.g. of unfoamed polyurethane.
  • These sandwich plate systems may be used in many forms of construction to replace stiffened steel plates, formed steel plates, reinforced concrete or composite steel-concrete structures and greatly simplify the resultant structures, improving strength and structural performance (e.g. stiffness, damping characteristics) while saving weight.
  • Further developments of these structural sandwich plate members are described in WO 01/32414, also incorporated hereby by reference.
  • foam forms may be incorporated in the core layer to reduce weight and transverse metal sheer plates may be added to improve stiffness.
  • the foam forms can be either hollow or solid. Hollow forms generate a greater weight reduction and are therefore advantageous.
  • the forms described in that document are not confined to being made of light weight foam material and can also be make of other materials such as wood or steel boxes.
  • Structural sandwich plate members according to U.S. Pat. No. 5,778,813 and U.S. Pat. No. 6,050,208 also provide greater protection against ballistics threats than conventional steel plating. For example, tests have demonstrated that a 3-30-3 structural sandwich plate member (3 mm mild steel-30 mm polyurethane-3 mm mild steel) offers 70% greater protection against 7.62 mm calibre bullets than a conventional stiffened steel plate of comparable weight. However, further improvement is still necessary to meet standards such as the US National Institute of Justice standard NIJ 0108.01.
  • a structural sandwich plate member comprising: first and second outer plates; a core of plastics or polymer material bonded to said outer plates with sufficient strength to transfer shear forces therebetween; and at least one interlayer within the core, said interlayer being generally parallel to the outer plates and having a higher tensile strength than the core material.
  • an interlayer or interliner within the core provides a substantial improvement in the blast and/or projectile resistance of the plate member, much greater than would be expected merely from the addition of the extra material. Exactly what form the interlayer should take depends on the threat to be protected against.
  • an additional metal e.g. steel or aluminium, layer of similar dimensions to the outer layers is preferred. This ensures that even if one of the outer layers is penetrated by shrapnel or completely stripped away by the force of the explosion, a sandwich structure with substantial strength and fire insulation properties remains.
  • a solid metal plate also provides additional protection against projectiles.
  • a more lightweight layer such as metal (e.g. steel) mesh or a high tensile strength fabric, such as KevlarTM or SpectraTM may be employed.
  • metal e.g. steel
  • KevlarTM or SpectraTM a high tensile strength fabric
  • Ceramic sheets may also be used to provide ballistics and/or blast protection.
  • the interlayer is corrugated or dimpled. This increases the chances that the projectile engages mote of the interlayer and at more favourable impact angles.
  • interlayers may be provided to further improve ballistics or blast resistance. If multiple corrugated or dimpled interlayers are provided, the corrugations and/or dimples in the different layers may have different orientations and/or offsets.
  • the materials, dimensions and general properties of the outer plates of the structural sandwich plate member of the invention may be chosen as desired for the particular use to which the structural sandwich plate member is to be put and in general may be as described in U.S. Pat. No. 5,778,813 and U.S. Pat. No. 6,050,208. Steel or stainless steel is commonly used in thicknesses of 0.5 to 20 mm and aluminium may be used where light weight is desirable.
  • the plastics or polymer core may be any suitable material for example an elastomer such as polyurethane, as described in U.S. Pat. No. 5,778,813 and U.S. Pat. No. 6,050,208.
  • the invention provides a method of manufacturing a structural sandwich plate member comprising the steps of: providing first and second outer plates in a spaced-apart relationship with at least one interlayer located therebetween and spaced from each of said outer metal plates; injecting uncured plastics or polymer material to fill the space defined between said outer plates and either side of said interlayer; and allowing said plastics or polymer material to cure to bond said outer plates together with sufficient strength to transfer shear forces therebetween; wherein said interlayer has a higher tensile strength than the cured plastics or polymer material.
  • the injection of the core can be carried out from both sides of the plate, either simultaneously or in two stages.
  • the interlayer may be coated or impregnated with plastics or polymer material prior to insertion into the cavity between the outer metal plates to give additional rigidity so that the interlayer mnaintains its shape and position during the injection process, e.g. where the interlayer is a high tensile strength fabric, and/or to improve bonding to the core material. If not the same as the core material, the plastics or polymer material with which the interlayer is coated or impregnated should be compatible with the core material.
  • FIG. 1 is a cross-sectional view of a structural sandwich plate member according to a first embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a structural sandwich plate member according to a second embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a structural sandwich plate member according to a third embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a structural sandwich plate member according to a fourth embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a structural sandwich plate member according to a fifth embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of a structural sandwich plate member according to a sixth embodiment of the present invention.
  • the structural sandwich plate member shown in FIG. 1 comprises upper and lower outer plates (faceplates) 11 , 12 which may be of steel or aluminium and have a thickness, for example, in the range of from 0.5 to 20 mm. A thickness of greater than or equal to 3 mm is advantageous in many applications.
  • Edge plates are welded between the face plates 11 , 12 around their outer peripheries to form a closed cavity.
  • a core 13 of plastics or polymer material preferably a compact thermosetting material such as polyurethane elastomer. This core may have a thickness in the range of from 15 to 200 mm; in the present application 50 mm is suitable.
  • the core 13 is bonded to the face plates 11 , 12 with sufficient strength and has sufficient mechanical properties to transfer shear forces expected in use between the two face plates.
  • the bond strength between the core 13 and face plates 11 , 12 should be greater than 3 MPa, preferably 6 MPa, and the modulus of elasticity of the core material should be greater than 200 MPa, preferably greater than 250 MPa, especially if expected to be exposed to high temperatures in use.
  • the bond strength may be lower, e.g. approximately 0.5 MPa.
  • the structural sandwich plate member has a strength and load bearing capacity of a stiffened steel plate having a substantially greater plate thickness and significant additional stiffening.
  • the plate of course, need not be flat but may take any form required for its intended use.
  • an interlayer 14 of high tensile strength fabric is provided in the core 13 .
  • the interlayer 14 is positioned in the middle of core 13 but this may be varied, provided a reasonable amount of core material remains either side of the interlayer.
  • the interlayer should have a high tensile strength, for example similar to that of steel, and other properties, such as a high modulus of elasticity and high visco-elasticity, to assist in resisting projectiles, as is known.
  • Several layers of fabric or netting may be used to provide the desired strength.
  • the interlayer may extend throughout the sandwich plate or may be localised to those areas requiring protection. The thickness of the interlayer need not be uniform, similarly additional material may be provided where most protection is desired.
  • Suitable materials include fibres made of molecular chains produced from poly-paraphenylene terephthalamide (aramids), preferably as sold by E. I. du Pont de Nemours and Company under the brand name KevlarTM. Suitable grades include Kevlar 29, Kevlar KM2, Kevlar 129 and Kevlar 49. Also suitable are fibres made from ultra-high molecular weight polyethylene, preferably as sold by Honeywell Performance Fibres under the brand name SpectraTM. Other suitable materials include para-aramid fibres, preferably as sold by Teijin Limited under the brand names TechnoraTM and TwaronTM.
  • the core may include lightweight forms as described in WO 01/32414.
  • the forms are made of fire-resistant materials as described in Copending British patent application 0306195.9 filed 18 Mar. 2003. Particular advantages can be achieved with forms made of non-tessellating shapes as described in British patent application no 0326608.7 (Agent's ref N90171) entitled “IMPROVED STRUCTURAL SANDWICH PLATE MEMBERS WITH FORMS” filed 14 Nov. 2003.
  • the forms may be made of hard materials to increase ballistics resistance and fragment capture.
  • the edge plates are welded around the periphery of lower faceplate 11 and then the interlayer 14 and spacers to hold it in place are placed in the resulting open cavity.
  • any precast sections of the core may be put in place as well as any shear plates or other fittings that may be desired.
  • the upper faceplate 12 is welded to the edge plates to form a closed cavity and the plastics or polymer material injected to form core 13 .
  • the injected material is then allowed to cure and the injection ports used in the injection step ground off and sealed along with the vent holes.
  • the fabric forming the interlayer may be coated or impregnated with a plastics of polymer material so as to be more rigid prior to insertion in the cavity.
  • the impregnation or coating material may be the same as used to form the core material but if not should be compatible therewith, e.g. bond well to the core material.
  • the bond strength between the core and the fabric interlayer 14 should not be less than that between the core and the faceplates 11 & 12 . In some cases the fabric may have to be chemically treated to ensure sufficient bond to the core 13 .
  • the fabric is dense, especially if several layers are provided, so that it is not easily penetrated by the uncured core material, injection of the core material can be performed from both sides of the plate, either simultaneously or sequentially.
  • FIG. 2 A second embodiment of the present invention is shown in FIG. 2 .
  • the structural sandwich plate member 20 according to the second embodiment of the invention is similar to the first embodiment but different in the nature of the interlayer, as described below.
  • the interlayer 15 comprises a metal e.g. steel stainless steel or aluminium, plate, forming a multiple layered structural sandwich plate member.
  • the metal plate is generally formed of the same material as the outer plates but need not necessarily be so.
  • the thickness of the metal plate 15 depends on the amount of ballistic or blast protection desired and the required residual structural strength. In many cases, a metal plate acting as interlayer will have the same thickness as one of the outer metal layers but may differ from this by ⁇ 50%.
  • the second embodiment is manufactured in the same general way as the first embodiment save that impregnation or coating of the metal plate is not generally necessary. Instead, the metal plate is cleaned and/or pretreated in the same way as the faceplates to give equivalent bond strength to the core 13 .
  • the metal plate 15 can simply be tack welded or glued to supports to keep it in place during injection.
  • FIG. 3 illustrates a third embodiment of the present invention which differs from the second embodiment in that the interlayer 16 is perforated.
  • the perforations provide weight saving, enhance the bond to the core by mechanical interlock and allow the uncured core material to flow freely throughout the cavity.
  • Suitable perforated plates may have regular patterns of holes of sizes in the range of from 3 to 20 mm and density, expressed as the ratio of the total area of holes to the total plan area of the plate, in the range of from 0.25 to 0.5. Such plates are widely available. Variations on the hole pattern, size and density may be effected to enhance ballistic and blast resistance.
  • the perforated plates may be made of hard ceramic materials as well as metals.
  • a metal mesh may be used as an alternative to a perforated plate.
  • FIG. 4 shows a fourth embodiment of the invention.
  • the mesh not only provides the same advantages as the third embodiment but also has varying orientation of the interlayer with respect to the faceplates which provides greater ballistic resistance, in particular for bullets fired at between 45 and 90° to the plating.
  • Expanded steel mesh such as steel mesh no 1292 manufactured by the Expanded Metal Company Limited of Hartlepool, England is suitable for use in the invention. This has a mesh size (centre-centre) of 30.48 mm ⁇ 12.70 mm, a strand width of 4.75 mm and thickness of 2.5 mm and a total open area of 25%.
  • the mesh size, strand width and thickness and total open area may be selected as a function of the ballistic threat to be resisted and the level of resistance required.
  • FIG. 5 shows a further variant of the first embodiment, in which the interlayer 18 has a zig-zag corrugated form.
  • this arrangement maximises the amount of material of the interlayer that the projectile contacts and ensures that projectiles that impact the outer layer perpendicularly will be incident on the inter layer at an acute angle, increasing the effective penetration strength of the interlayer.
  • the interlayer is of high tensile strength fabric
  • the zig-zag shape can be effected by impregnating the fabric with a thermosetting material in a suitably shaped mould.
  • the zig-zag shape may be applied by roll-forming or pressing.
  • the interlayer may be provided with wavy corrugations. This has a similar effect and can be achieved in similar ways.
  • FIG. 6 also illustrates the use of multiple, in this case two, interlayers 19 a, 19 b, which may be offset from each other (as shown) or oriented perpendicular to each other. Dimpled interlayers, or sheets corrugated in two directions, may also be used.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US10/579,057 2003-11-14 2004-11-01 Structural sandwich plate members Abandoned US20070144111A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0326609A GB2408016A (en) 2003-11-14 2003-11-14 Structural sandwich member
GB0326609.5 2003-11-14
PCT/GB2004/004625 WO2005051649A1 (en) 2003-11-14 2004-11-01 Improved structural sandwich plate members

Publications (1)

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US20070144111A1 true US20070144111A1 (en) 2007-06-28

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US (1) US20070144111A1 (enrdf_load_stackoverflow)
EP (1) EP1682344B1 (enrdf_load_stackoverflow)
JP (1) JP4814102B2 (enrdf_load_stackoverflow)
KR (1) KR20060116001A (enrdf_load_stackoverflow)
CN (1) CN100528548C (enrdf_load_stackoverflow)
AT (1) ATE409582T1 (enrdf_load_stackoverflow)
DE (1) DE602004016878D1 (enrdf_load_stackoverflow)
ES (1) ES2314468T3 (enrdf_load_stackoverflow)
GB (1) GB2408016A (enrdf_load_stackoverflow)
PL (1) PL1682344T3 (enrdf_load_stackoverflow)
WO (1) WO2005051649A1 (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060283140A1 (en) * 2005-06-03 2006-12-21 Intelligent Engineering (Bahamas) Limited Wooden decks
US20100282442A1 (en) * 2008-01-07 2010-11-11 Oleg Sukuvoy structural sandwich plate panels and methods of making the same
US20110057498A1 (en) * 2008-03-03 2011-03-10 Delta Tooling Co., Ltd. Structural member and seat structure for transport machine
WO2011142784A3 (en) * 2009-12-15 2012-01-05 Force Protection Technologies, Inc. Apparatus for extending and retracting an armor system for defeating high energy projectiles
US20120128926A1 (en) * 2009-07-31 2012-05-24 Hiroshi Ohishi Laminated steel plate
CN108533149A (zh) * 2018-05-10 2018-09-14 中国人民解放军61489部队 一种防爆防护门用门板
WO2020104452A1 (de) * 2018-11-23 2020-05-28 Thyssenkrupp Steel Europe Ag Ballistisches produkt und seine verwendung
US10788294B2 (en) * 2015-02-01 2020-09-29 Mitigation 3, LLC Ballistic resistant laminate panel
US20210101365A1 (en) * 2019-08-22 2021-04-08 The Boeing Company Method and apparatus for forming non-bonded regions in multi-layered metallic armor
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CN100528548C (zh) 2009-08-19
WO2005051649A1 (en) 2005-06-09
JP4814102B2 (ja) 2011-11-16
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DE602004016878D1 (de) 2008-11-13
CN1906024A (zh) 2007-01-31
ATE409582T1 (de) 2008-10-15
GB2408016A (en) 2005-05-18
PL1682344T3 (pl) 2009-04-30
ES2314468T3 (es) 2009-03-16
EP1682344A1 (en) 2006-07-26

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