CA2907287A1 - Ballistic panel - Google PatentsBallistic panel Download PDF
- Publication number
- CA2907287A1 CA2907287A1 CA2907287A CA2907287A CA2907287A1 CA 2907287 A1 CA2907287 A1 CA 2907287A1 CA 2907287 A CA2907287 A CA 2907287A CA 2907287 A CA2907287 A CA 2907287A CA 2907287 A1 CA2907287 A1 CA 2907287A1
- Prior art keywords
- 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.)
- 239000010410 layers Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 methods Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 2
- 238000001721 transfer moulding Methods 0.000 claims description 2
- 238000009755 vacuum infusion Methods 0.000 claims description 2
- 235000012459 muffins Nutrition 0.000 claims 1
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- 229920005989 resins Polymers 0.000 claims 1
- 239000000463 materials Substances 0.000 abstract description 23
- 239000011800 void materials Substances 0.000 abstract description 5
- 239000011901 water Substances 0.000 abstract description 3
- 239000000945 fillers Substances 0.000 abstract description 2
- 239000000919 ceramics Substances 0.000 description 18
- 239000002131 composite materials Substances 0.000 description 17
- 239000011162 core materials Substances 0.000 description 13
- 239000002184 metals Substances 0.000 description 5
- 229910052751 metals Inorganic materials 0.000 description 5
- 239000011157 advanced composite materials Substances 0.000 description 3
- 210000003660 Reticulum Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
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- 230000001419 dependent Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000002861 polymer materials Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reactions Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic materials Inorganic materials 0.000 description 1
- 238000007796 conventional methods Methods 0.000 description 1
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- 238000005538 encapsulation Methods 0.000 description 1
- 239000004744 fabrics Substances 0.000 description 1
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- 239000000835 fibers Substances 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 238000005755 formation reactions Methods 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000001665 lethal Effects 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 239000011159 matrix materials Substances 0.000 description 1
- 239000007769 metal materials Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000116 mitigating Effects 0.000 description 1
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- 238000006011 modification reactions Methods 0.000 description 1
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- 239000002994 raw materials Substances 0.000 description 1
- 239000007787 solids Substances 0.000 description 1
- 239000000725 suspensions Substances 0.000 description 1
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
TITLE OF THE INVENTION
Ballistic Panel COPYRIGHT NOTICE
This patent document contains material which is subject to copyright protection.
The copyright owner has no objection to the facsimile reproduction by anyone of this patent document as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
FIELD OF THE INVENTION
There are many different battlefield threats that armor for personnel, building structure or equipment, and military vehicles or ships must protect against.
The invention relates to the field of ballistic resistant panel products or structure and in particular to multi layers system utilizing a three dimensional sandwich core (Cup Core TM) with ceramic ball bearings or hardened material as filler in between an outer composite Strike Plate and an inner composite Backing Plate. The interstice space in the sandwich core is to be filled with an advanced composite material such as ceramic ball bearings, polymer matrix, or any selected advanced toughened material to encounter the projectile by deformation, deflection and disintegration prior to reaching the Backing Plate.
In order to defeat modern threats, which are becoming more and more lethal, a tremendous amount of the traditional armor such as monolithic metallic armor systems is required. This amount of armor often overwhelms the suspension and drive systems on light armored vehicles or it increases the payloads to battleships and water crafts, making them slow, cumbersome and unreliable.
This invention can not only stop the ballistic threats, when properly designed, it may also be integrated into the core of the vehicle or equipment to provide structural and fire barrier protection as well.
The system represents a new generation composite armor system relative to excellent ballistic and structural performance. It can be tailored for producing large flat, multi shaped or contoured panels utilizing any conventional manufacturing techniques such as contact molding, vacuum infusion process, vacuum transfer molding, filament winding and compression molding. The benefits are improved ballistic performance at a lower weight, improved structural integrity, easier fabrication and lower cost.
BACKGROUND OF THE INVENTION
Substantial studies have been conducted on ceramic plate material backed by a ductile metal or composite plate against various types of projectiles. Those conventional methods are heavy, non-versatile and expensive. The use of ceramic and composite material in conjunction with steel for ballistic protection is a common practice in the defense industry. This new product by utilizing Chemposite's novel Cup CoreTM design to consolidate the ultra-light characteristic of composite material and the toughness of ceramic ball bearing or advanced polymer material.
Composite materials have various properties that make them excellent for engineering applications. Generally, these materials offer qualities of strength, stiffness in tension, flexure and shear. The useful characteristics of various structural products are somewhat dependent on their geometric shape. Materials such as steel and other metals are available in various standard shapes that optimize the desired characteristics. The shapes commonly made reflect the necessities of the manufacturing process.
2 In the simplest application, the current application relates to a sandwich panel consisting of the Cup Core TM as the core material and bonded to two adjacent plates made of composite material such as fiberglass reinforced plastic (FRP) or any advanced composite material molded to any form according to the product requirement. The panel will provide a hollow section in the length and the width direction by extending an array of features in the both direction between the two faces for structural integrity and media filling.
For structural integrity, several methods to achieve this are well known; for example, in aerospace, honeycomb shapes are bonded between thin structural sheets of metal or composite materials. Another method is to use adhesive or other proprietary materials between the two interfaces as seen in the composite industry. All these solutions have drawbacks in bonding two different materials together such as ceramic and polymer material. Sometimes the integration of the system components is done in an autoclave under controlled temperatures and pressures to assure the optimum bonding of the components into the system.
Additionally, the bonding in the prior art, is vulnerable to water intrusion and delamination. Furthermore, the bonding between the two interface layers and the core material may be limited and inconsistent.
For ballistic protection, a fiber-based composite armor requires a hard facing material such as a ceramic plate in order to stop or slow down the armor piercing projectiles. This new invention is focused on using the full composite structural panel consisting of the Cup CoreTM as the core material to create an interstice space for the filling of media such as ceramic ball bearings or any hardened material. When the projectile goes through the strike plate, it will encounter the projectile prior to hitting the media layer of the ceramic ball bearings, confining the front of the ceramic and mitigating the spall. The ball bearings or any hardened material in the interstitial space will deflect the projectile before defeating it. Furthermore, if ceramic ball bearings is used, the placement of the ceramic material in layers will transfer the impact force to its adjacent ceramic
3 material and the absorption of the kinetic energy of the fragments. Thus, reducing the conoid formation to the composite backing plate that could cause plate failure and the full penetration of the projectile.
Other objects of the invention will be apparent from the description that follows.
SUMMARY OF THE INVENTION
According to the present invention there is provided a structural panel. The panel includes a sectional sheet and a plurality of spaced columnar projections extending perpendicularly from a local face from said sheet.
The projections may be shaped to provide structural shear rigidity to the structural panel. The projections may also be shaped to provide an interstitial space in the structural panel when the media such as ceramic ball bearings or any hardened material are inserted into the void or interstitial space of the ballistic panel structure.
The projections may include a columnar wall extending from the sheet and may connect to the back plate. The strike plate and backing plate when bonded to the Cup Core structural panel, may be parallel to the local face and the columnar wall may extend from the sheet in the form of a dome with a radius of 40mm and a base for connection to the adjacent sheets.
The projections may be hollow up to the said plate and may be regularly spaced along said sheet. The regular spacing of the projections in a width of the sheet may be 100 mm and the regular spacing of the projections in a length of the sheet may be 100 mm. In the alternative, the projections may be irregularly spaced along the sheet.
The base may be circular in shape or may be a non-infinite polygon in shape.
4 The projections may be shaped to resemble a dome shape with a base and an open top at the sheet. The dome shape may have a diameter of 55 mm at the open top, a base diameter of 36 mm, a depth of 16mm from the open top to the base and a radius of 40mm as measured from the open top to the columnar wall.
The projections may all extend from the same side of the sheet.
According to another embodiment of the present invention there is provided a structural panel for insertion in a void of a ballistic panel. The panel may include a sectional sheet and a plurality of spaced columnar projections extending perpendicularly from a face of the sheet.
According to yet another embodiment of the present invention there is provided a method of producing a structural panel. The method may include providing a sectional sheet, which may be placed through a roller, and forming a plurality of spaced columnar projections extending perpendicularly from a local face from the sheet.
Forming the plurality of spaced columnar projections may include placing the sheet over a mold which may be inserted into a machine press.
According to yet another embodiment of the present invention there is provided a method of increasing the structural integrity of a structure. The method may include providing a sectional sheet having a plurality of spaced columnar projections extending perpendicularly from a local face from the sheet.
Bonding means may be provided to affix the sectional sheet to the structure. The sectional sheet may then be allowed sufficient time to bond to the structure.
The bonding means may include an adhesive, a weld, a mechanical fastener and/or other equivalent means.
5 According to yet another embodiment of the present invention there is provided a use of a structural panel for increasing the structural integrity of a structure. The structural panel may include a sectional sheet and a plurality of spaced columnar projections extending perpendicularly from a local face from the sheet.
A monolithic advanced composite encapsulation with ceramic ball bearings or any hardened material in the interstitial space will provide a strong structure.
Eliminate the concern or requirement for special bonding between various materials such as ceramic/metal or composite/metal that could require an autoclave under controlled temperature and pressure to ensure the optimum bonding of the components into the system. Additionally, a fluid such as a Shear-Thickening Fluid (STF) may be used in the interstitial space.
Other aspects of the invention will be appreciated by reference to the detailed description of the preferred embodiment and to the claims that follow.
BRIEF DESCRIPTION OF THE DRAWINGS
The preferred embodiment of the invention will be described by reference to the drawings thereof in which:
Fig. 1 a perspective view of the preferred embodiment of the ballistic panel invention;
Fig. 2 is a view along line A-A of Fig of Fig 1.; and Fig. 3 is top view of a structural sheet of Fig. 1.
6 DESCRIPTION OF THE PREFERRED EMBODIMENT
OF THE INVENTION
Referring to Figs. 1,2 and 3 a ballistic panel '10 is depicted. Panel 10 includes a sectional sheet 12 and a plurality of spaced columnar projections 14 extending perpendicularly from a local face from sheet 12. Here, projections 14 are depicted as extending from the same side of sheet 12, however, as those skilled in the art will appreciate, projections 14 may extend from either side of sheet 12 depending upon the application. Each columnar projection 14 may be shaped and sized to meet structural requirements and as those skilled in the art will appreciate, the columnar projection is not limited to those depicted.
Sheet 12 is commonly formed in a continuous process and supplied in sheet format to be used as a sandwich core material in composite products. Here, a sectional sheet is provided via conventional means and a plurality of spaced columnar projections are formed that extend perpendicularly from a local face from the sheet.
Each of projections 14 include a columnar wall 16 extending from sheet 12 and connecting with a base 18. As depicted, base 18 runs parallel to the local face and columnar wall 16 extends from sheet 12 in the form of a dome with a common radius, an open end and a flat base. Sheet 12 and projections 14 may have a wall thickness of preferably approximately 3.5 mm.
Projections 14 are preferably hollow up to base 18 and are regularly spaced along sheet 12. Preferably, the regular spacing of projections 14 in a width of sheet 12 is 100 mm centre-to-centre and the regular spacing of projections 14 in a length of sheet 12 is 100 mm centre-to-centre. In the alternative, projections 14 may be irregularly spaced along sheet 12.
7 As depicted, base 18 is circular in shape, but it is also contemplated that base 18 may be a non-infinite polygon in shape, for example, a pentagon. As depicted, projections 14 are preferably shaped to resemble a dome with a base 18 and an open end at sheet 12. Preferably, the dome has a diameter of 55 mm at the open top, a base diameter of 36 mm, a depth of 16mm from the open top to the base and a common radius of 40mm as measured from the center point of the open top to columnar wall 16.
Sheet 12 is sandwiched between upper layer strike plate 100 and lower layer backing plate 102. Strike plate 100 and backing plate 102 are affixed to sheet 12 through conventional bonding techniques.
Although sheet 12 is depicted as a flat sheet and sandwich core material, sheet 12 may be any configurable shape depending upon its application. Sheet 12 will generally be bonded in between any composite plates or sheets either through custom fabrication or manufacturing processes.
As those skilled in the art will appreciate, projections 14 are shaped to also provide structural shear rigidity to the armored panel structure. The exact shape and spacing of projections 14 will be dependent upon the particular application and the dimensions and shapes described and illustrated are only preferred embodiments of the invention.
The projections may also be shaped to provide an interstitial space in the panel when any hardened material is inserted in the void of the ballistic panel. The projections may also be shaped to provide an interstitial space in the panel when ceramic ball bearings or any hardened material is inserted in the void of the ballistic panel.
The structural panel with its uneven or bump shape design, allows any hardened material or ball bearings to be filled in the cavity in between the hallow section of
8 the panel in order to increase stiffness and hardness to the panel. The section will be filled with any media of any size or material such as Shear-Thickening Fluids (SFTs) or ceramic ball bearings to deflect and defeat the projectile.
Optimally, ball bearings "I Omm in diameter or smaller are preferable. This panel design can also act as a structural sandwich core material to increase the strength of the equipment and reduce the weight and material usage in production.
This new product is designed to eliminate the older technique in attaching a hardened plate such as metal or ceramic plate in front of the composite plate to encounter and defeat the projectile. This product has increased the production efficiency of any armored product since the material is supplied in a prefabricated product shape such as a boat haul, light armor vehicle body, body armor or building structure and not in raw material form such as a raw plate or fabric products. Its shape has more contact or bonding area than any other sandwich material such as honeycomb core that is commonly used in the structural application. Its solid panel with its engineered shape and size has enhanced the strongest structural form available according to the product requirement. This will increase the flexibility in the future design in armor protection products for added strength and/or ballistic protection.
It will thus be seen that a new and novel structural panel has been illustrated and described and it will be apparent to those skilled in the art that the preferred and alternative embodiments have been described in some detail but that certain modifications may be practiced without departing from the principles of the invention.
a sectional sheet having a plurality of spaced projections extending perpendicularly from a local face from said sheet, wherein said projections are configured to provide an interstitial space in said sectional sheet;
an upper layer strike plate and a lower layer backing plate, said upper strike plate and said lower backing plate being connected to said sectional sheet to sandwich said sectional sheet and said projections; and a force diffusing insert inserted into said interstitial space.
providing a sectional sheet;
forming a plurality of spaced columnar projections extending perpendicularly from a local face from said sheet;
providing an upper layer strike plate and a lower layer backing plate; and sandwiching said section sheet and said projections between said upper strike plate and said lower backing plate.
Priority Applications (1)
|Application Number||Priority Date||Filing Date||Title|
|CA2907287A CA2907287A1 (en)||2015-10-09||2015-10-09||Ballistic panel|
Applications Claiming Priority (2)
|Application Number||Priority Date||Filing Date||Title|
|CA2907287A CA2907287A1 (en)||2015-10-09||2015-10-09||Ballistic panel|
|US14/954,064 US20170102216A1 (en)||2015-10-09||2015-11-30||Ballistic panel|
|Publication Number||Publication Date|
|CA2907287A1 true CA2907287A1 (en)||2017-04-09|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|CA2907287A Abandoned CA2907287A1 (en)||2015-10-09||2015-10-09||Ballistic panel|
Country Status (2)
|US (1)||US20170102216A1 (en)|
|CA (1)||CA2907287A1 (en)|
Families Citing this family (1)
|Publication number||Priority date||Publication date||Assignee||Title|
|WO2019152998A1 (en) *||2018-02-05||2019-08-08||Bailey Robert D||Pro-active defense structure|
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Also Published As
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|US8387510B1 (en)||Composite armor system including a ceramic-embedded heterogeneously layered polymeric matrix|
|ES2370650T3 (en)||A shield plate for use in the blinds of people or vehicles.|
|JP5368312B2 (en)||Lightweight composite protective articles spaced apart|
|AU2002223998B2 (en)||Laminated armor|
|EP2146843B1 (en)||Ballistic-resistant panel including high modulus ultra high molecular weight polyethylene tape|
|CN1153665C (en)||Armor-plating composite|
|Alcock et al.||The effect of temperature and strain rate on the impact performance of recyclable all-polypropylene composites|
|CA2650447C (en)||Multilayered material sheet and process for its preparation|
|US4868040A (en)||Antiballistic composite armor|
|EP2386817B1 (en)||Ballistic armor|
|US10753418B2 (en)||Energy absorbing truss structures for mitigation of injuries from blasts and impacts|
|US20170144423A1 (en)||Method of manufacturing a composite laminate|
|US4664967A (en)||Ballistic spall liner|
|Wambua et al.||The response of natural fibre composites to ballistic impact by fragment simulating projectiles|
|US6289781B1 (en)||Composite armor plates and panel|
|EP0251395B1 (en)||Armour plate|
|Yahaya et al.||Quasi-static penetration and ballistic properties of kenaf–aramid hybrid composites|
|US4131053A (en)||Armor plate|
|US7490539B2 (en)||Lightweight composite armor|
|EP1511622B1 (en)||Reinforced composite panel|
|US3320619A (en)||Lightweight ballistic helmet|
|CN101684992B (en)||Bulletproof composite board|
|DE60223477T2 (en)||Anti-ballistic armor and manufacturing method for it|
|US7284470B2 (en)||Ballistic resistant devices and systems and methods of manufacture thereof|
|US5972819A (en)||Ceramic bodies for use in composite armor|
Effective date: 20181010