Abstract: A penetration resistant material can comprise a plurality of layers of loosely-interconnected, mutually nonbonded and non-laminated sheets of ballistic para-aramid synthetic fabric coupled between inner and outer layers of cloth fabric.

Abstract: A multi-layer armor structure that includes a first composite layer and a second composite layer affixed to the first composite layer, wherein the second composite layer includes a metal plate and sound-wave-deadening material. The first and second composite layers form an overall composite layer. Some embodiments provide a multi-layer composite-armor article that includes a first metal layer, wherein the metal layer has an outer face that will be closer to an outermost surface of the armor article, and an inner face that will be farther from the outermost surface of the armor article; and a multi-layer polymer structure attached to the inner face of the first metal layer, wherein the polymer structure has an outer portion that is attached to the inner face of the first metal layer, and an inner portion that has a lower durometer value than the outer portion.

Abstract: Debris entrapment systems and methods for utilizing are disclosed. One such debris entrapment system includes a track configured to be mounted proximate a window opening. A plurality of slidable carriers are attached proximate an attachment edge of a mesh curtain and are configured to fit with a guide of the track and to be slidably attached to the track. A first plurality of trapped carriers are attached proximate the attachment edge and a first edge of the mesh curtain and a second plurality of trapped carriers are attached proximate the attachment edge and a second edge of the mesh curtain. The trapped carriers are configured to fit with the guide of the track and are trapped from sliding along the guide. The debris entrapment system further includes a reinforcement strip attached to the mesh curtain.

Abstract: Disclosed herein is a protective device for a combat vehicle. The protective device includes a net which protects the combat vehicle from a rocket bomb, and net support assemblies which are provided to install the net on the combat vehicle. Each net support assembly includes a net fixing unit which is coupled to a corresponding one of intersection portions of the net, a vehicle body mounting unit which is mounted to the combat vehicle, and a spacing unit which connects the net fixing unit to the vehicle body mounting unit. The protective device further includes a distance adjuster which adjusts the distance between the net and the vehicle body, a shock absorber which absorbs impact, a protective member which is provided to reduce friction between the rocket bomb and the net strand, and a rocket bomb removal assembly which is installed on each intersection portion of the net.

Abstract: A composite ballistic armor or other composite component may be formed by encapsulating one or more ceramic elements in a casting shell and introducing molten base metal into the casting shell, such that the molten base metal encapsulates the one or more ceramic elements to form the composite component. Prior to the pouring process, the ceramic elements are pre-heated to, or near, the melting point temperature or pouring temperature of the encapsulating metal. Additionally, the cooling rate following the metal pour may be less than a predetermined rate for a predetermined period of time. The encapsulating metal may comprise, for example, a steel alloy, such as 4140 or 8630 AISI, a stainless steel alloy, or FeMnAl.

Abstract: Disclosed herein is a protective device using a net for a combat vehicle. The protective device includes a rocket bomb removal assembly provided on each of intersection portions of the net. The rocket bomb removal assembly has first intersection support points supporting net strands of the net that are brought into contact with the rocket bomb and are changed into a circular shape when the rocket bomb moves forwards, and second intersection support points supporting the net strands that are brought into contact with the rocket bomb and are changed into a circular shape when the rocket bomb is being moved backwards by the reaction of the net. The diameter of the circle formed by the net strands that are supported on the second intersection support points is greater than that of the circle formed by the net strands that are supported on the first intersection support points.

Abstract: A process for manufacturing a polyolefin powder having a thermoplastic elastomer includes the steps of combining a polyolefin powder or a monomeric source therefor with a thermoplastic elastomer, the thermoplastic elastomer being in the form of a solution or dispersion in a solvent, wherein where a monomeric source of a polyolefin is used, contacting the source of a polyolefin with a polymerization catalyst under polymerization conditions to form a polyolefin, and removing the solvent to form a powder and wherein the polyolefin and the thermoplastic elastomer are not the same polymer. A particulate polyolefin composition which has a particle size distribution such that at least 80 vol. % of the particles has a diameter in the range of 1-3000 microns, and which includes a nascent polyolefin and 0.1-30 wt. % of a thermoplastic elastomer, calculated on the total of polyolefin and thermoplastic elastomer, is also described.

Abstract: An offset ballistic protection device protecting a wall provided with a hatch (200), wherein said device comprises at least a first grid (1) offset with respect to the wall and comprising a first series of bars (1a) parallel to each other and substantially perpendicular to the pivot axis (400) of a hinge (300) of the hatch (200). This ballistic protection device (101) comprises a second grid (2) offset with respect to the hatch (200) and comprising a second series of bars (2a) substantially parallel to the first series of bars (1a), wherein the second grid (2) is positioned with respect to the first grid (1) so that the bars (2a) thereof are spatially offset in the plane of the second grid (2) with respect to the bars (1a) of the first grid (1), wherein the bars (2a) of the second grid (2) are therefore able to pass between the bars (1a) of the first grid (1) during pivoting of the leaf (200).

Abstract: A panel for use in assembling a radiation, microbial, acoustically, and ballistically shielded space within a building or other personal space. The panel is comprised of an ionizing radiation shielding material layer, a non-ionizing radiation shielding layer, an anti microbial treated layer, a bulletproof layer and an acoustical shielding layer. A method for using said panels to create a radiation, microbial, acoustic, and ballistic shielded space.

Abstract: A transparent armor system includes a hard face fabricated from a substantially transparent glass-ceramic material exhibiting crystalline bodies throughout the mass of the glass-ceramic material and a backing covering a rear surface of the hard face opposite an anticipated incoming projectile. The backing has a refractive index substantially matching that of the hard face such as to allow substantial transparency of the transparent armor system. The hard face serves to disburse energy caused by the impact of an incoming projectile with the transparent armor system, while the backing serves to retain any pieces of the hard face fractured during ballistic impact. In certain embodiments, a plurality of hard faces are held in parallel and spaced apart arrangement.

Abstract: A blast protected unit (100) for blast protection comprises: a protecting panel (14) having a first side (7) and a second side (8); a sub-frame (16) adapted to circumscribe said protecting panel (14); and a plurality of energy absorption units (30). The absorption units (30) are adapted to connect the sub-frame (16) to the protecting panel (14). Each of the energy absorption units (30) is connectable to the protecting panel (14) and the sub-frame (16), such that the aforementioned blast protected unit (100) is formed. The energy absorption units (30) are configured to deform under a blast force applied against the first side (7) of the protecting panel (14), allowing the protecting panel (14) to move away from and remain in proximity to the sub-frame (16).

Abstract: A method for and apparatus absorbing the energy of a projectile strike by a multiplicity of energy dissipating elements of high mass that are contained within a spaced defined by walls. A projectile passing through one of the walls transmits its energy to a multiplicity of energy dissipating elements, such as hardened steel balls or various shaped objects of high mass, by causing energy transfer and distribution through a loose mass of the energy dissipating elements and disintegrating the projectiles. Energy absorbing apparatus embodying this method may take the form of a static or moveable bullet or projectile trap, an energy absorbing external barrier or shelter on vehicles, and portable personnel protection structures for use in a tactical environment. The energy absorbing and dissipating elements are subject to some movement in response to the energy imparted by the projectiles and quickly settle after the energy has been dissipated.

Abstract: A shield apparatus which is aimed at providing advanced protection for first incident responders is disclosed. The shield apparatus includes a transparent shield portion which has an outer edge. A trim portion made of a flexible material is affixed to the outer edge of the transparent shield portion. An On/Off switch actuates two flood lights which are controlled via separate circuits for reliability purposes. Dual handles, plus a detachable shoulder strap may also be provided. Video camera, thermal imaging sensors/camera and alternative lighting, including infrared, may also be provided.

Abstract: A blast resistant cladding includes a curtainwall arranged on a structure and defines a load path for transferring loads imparted on the curtainwall to the structure and an absorbing system positioned along the load path and configured for absorbing blast-type loads imparted on the curtainwall.

Abstract: A utility vehicle with underfloor structure giving protection from mine explosions. There is a wedge at the edge of the driver compartment which splits the detonation blast from a mine buried in the track of a front wheel. There is a multilayer stack, inboard of the wedge, which crushes upward to reduce the detonation wave from a mine buried under the vehicle. The stack comprises panels to catch the detonation wave and separated by spacers. Spacers are longitudinal stringers stacked above each other and welded, forming deep beams joined to bulkheads, making the vehicle's frame. The wedge also bolts to bulkheads, augmenting the frame. In cross section, the stack is curved, tapering off at each end to merge with the “V” of a wedge. The wedge crushes sideways under the detonation wave, providing protection at the edge of the driver compartment where stack material has run out.

Abstract: A semi-continuous duty, Green Technology, self-charging 14, unmanned electric vehicle providing protection and security from underground mines. A deflector blade 11 follows natural existing contours to maintain straight line paths, while simultaneously carrying a mine detector 10, a vertical reciprocating ram set 30, 32 and 33 that preloads soil while also creating forward motion, followed by an energy dissipation and containment canopy system 22, 24, 26 & 29. The comprehensive system provides protection from mines on existing pathways in desert environments using a self-sufficient energy source. In addition, the total system utilizes only Green Technology for all modes of operation.

Abstract: A kinetic energy and blast energy absorbing material includes: a micro-truss structure including: a plurality of first struts extending along a first direction; a plurality of second struts extending along a second direction; and a plurality of third struts extending along a third direction; and a compressible fluid comprising a liquid or gel and a nanoporous material, wherein the micro-truss structure contains the compressible fluid.

Abstract: An energy dissipation assembly is provided for mounting between a fixed support and moveable support. The assembly includes a sacrificial deformation tube, a hardened cutter/deflector assembly and, optionally, a connecting cable to maintain the cutter/deflector assembly in juxtaposed coaxial alignment with an end deformation tube. The cutter/deflector assembly has a generally flattened disc shaped profile and includes a central hub, a circular support ring and one or more cutting blades. The support ring is concentrically about the hub and has an inner diameter greater than the outer tube diameter. On the occurrence of a shock force, the cutter/deflector assembly moves axial to cut/deform the deformation tube to dissipate force energy.

Abstract: Described embodiments include a system, device and method. A described device includes a first material configured to reflect a substantial portion of a specified incident air blast wave energy. The first material has an acoustic impedance substantially mismatched to air's acoustic impedance. A second material is configured for wearing proximate to a human body. The second material includes attenuating-regions. A first attenuating-region is configured to attenuate a first range of overpressures utilizing a first inelastic response. A second attenuating-region is configured to attenuate a second range of overpressures utilizing a second inelastic response. At least a portion of the back surface of the layer of the first material is proximate to at least a portion of the front surface of the layer of the second material.

Abstract: Described embodiments include a system, device and method. A described device includes a first material configured to reflect a substantial portion of a specified incident air blast wave energy. The first material includes a first reflective-region having a first acoustic impedance substantially mismatched to air's acoustic impedance. The first material includes a second reflective-region having a second acoustic impedance substantially less than the first acoustic impedance. The device includes a second material configured to attenuate the specified incident air blast wave energy utilizing an inelastic response. The second material is configured for wearing proximate to a human body. At least a portion of a back surface of the first material is proximate to a front surface of the second material.

Abstract: Described embodiments include a system, device and method. A described device includes a layer of a first material configured to reflect a substantial portion of a specified incident air blast wave energy. The layer of the first material has an acoustic impedance substantially mismatched to air's acoustic impedance, and a thickness less than about 3 mm. The device includes a layer of a second material configured to attenuate a substantial portion of the specified incident air blast wave energy utilizing an inelastic response. At least a portion of a back surface of the first material is proximate to at least a portion of a front surface of the second material.

Abstract: Composite armor panels are disclosed. Each panel comprises a plurality of functional layers comprising at least an outermost layer, an intermediate layer and a base layer. An armor system incorporating armor panels is also disclosed. Armor panels are mounted on carriages movably secured to adjacent rails of a rail system. Each panel may be moved on its associated rail and into partially overlapping relationship with another panel on an adjacent rail for protection against incoming ordnance from various directions. The rail system may be configured as at least a part of a ring, and be disposed about a hatch on a vehicle. Vehicles including an armor system are also disclosed.

Abstract: Ultra high hardness steel based composite armor having crack mitigating layers. A method of using ultra high hardness steel in ballistics armor applications. A method of overcoming brittleness of a ultra high hardness steel plate for using the ultra high hardness steel in ballistic armor applications.

Abstract: According to one embodiment, an armor system comprises a plurality of metallic layers. The armor system further comprises a plurality of non-metallic layers located in between two or more metallic layers of the plurality of metallic layers, such that each non-metallic layer is located at a respective depth in the plurality of metallic layers.

Abstract: Antiballistic armor is provided that includes a glass-ceramic component having 50 to 70 weight percent SiO2, 15 to 25 weight percent Al2O3, 0.5 to 5 weight percent ZrO2, 0.1 to 10 weight percent Li2O, 1 to 5 weight percent TiO2. The glass ceramic component has a main crystalline phase that comprises keatite mixed crystal in a compositional range of LiAlSi2O6 to LiAlSi4O10.

Abstract: The armour repair patch uses a simplified adhesive system for securement of the repair patch in the field without specialized equipment. A preferred adhesive system includes a pressure sensitive adhesive provided on a back surface of a body member and a fabric overlay cover is and extending beyond the body member. This combination provides an effective system for battlefield repair.

Abstract: According to the present invention, a ceramic composite material may be formed by a method comprising the steps preparing a solid solution comprising aluminium oxide, a second component comprising a cation in a first valent state, and a dopant, wherein the dopant is present in an amount of not more than 1000 ppm by weight of the solid solution; and carrying out a treatment on the solid solution to form the ceramic composite material, wherein the treatment changes the valent state of said cation to a second valent state, forming a ceramic composite material comprising grains containing aluminium oxide and a precipitate of particles comprising the cation in the second valent state. The materials may be useful in the manufacture of various products, including wear resistant products and armour.

Abstract: There is provided a polymer ceramic composite which includes one or more particulate ceramics and a mixture of polymers. There is further provided methods of manufacture and application of the polymer ceramic composition. The composition finds use as a mouldable armour strike face, particularly in personal protective equipment and in vehicle or aircraft armour.

Abstract: A camouflage material comprising an electromagnetic energy (EME) absorbing layer comprising an array of carbon nanotubes and a plurality of energy transmitting element embedded within the absorbing material. The energy transmitting elements are operative to convey energy to at least a portion of an outer surface of the absorbing layer.

Abstract: According to an embodiment, a ballistic structure comprises a front pellet layer configured to face a ballistic threat and rear pellet layer therebehind, each of the pellet layers comprising a plurality of pellets, which can be made of a ceramic material, having cylindrical bodies with their height axes in both layers being substantially parallel to each other, the pellets being arranged in a honeycomb pattern within a binder matrix, the pellet layers being codisposed such that all interior spaces (i.e., spaces which are surrounded on all sides by pellets) of each pellet layer are entirely overlapped by an area of the other pellet layer that is free of such spaces, the two layers being by an intermediate layer having such a width and being made of such a material as to allow the rear layer to rigidly support the front layer.

Abstract: A unit of modular armor. The module has a box-like, optically opaque outer shell of ballistic-protection material enclosed to exclude light from the module's interior. The shell contains transparent armor plates and the shell contains a self-diagnostic system for ascertaining whether the plates have been damaged. The self-diagnostic system includes a first PC board disposed along first edges of the plates, the board being divided into strips on which are mounted rows of lights. The self-diagnostic system further includes a second PC board at second, opposed edges of the plates divided into strips on which are mounted rows of light receptors. The PC boards incorporate circuitry for illuminating the rows of the lights in a row-by-row sequence, and for allowing activation only of the receptors directly opposed to illuminated lights. This circuitry has an analysis means for determining the health of the plates in response to signals from the receptors.

Abstract: A body armor composite material is provided to protect a wearer from small-arms projectiles. The material includes a flexible liner, a polymer binder disposed on the liner, and ceramic solids embedded in the binder. The flexible liner conforms to a portion of the wearer and elastically deforms in response to application of mechanical force. The binder can be a polyurea foam. The solids can be spheres arranged in a single-layer pattern substantially parallel to liner.

Abstract: Described are protective and/or ballistic resistant articles made from one or more layers of fabric bound to one or more layers of a machine direction oriented film. The described articles exhibit excellent abrasion resistance. The articles include those made using woven and/or non-woven fabrics such as unidirectional fabrics. Methods for producing ballistic-resistant articles using woven and/or non-woven fabrics and machine direction oriented film are also described.

Abstract: The present disclosure is directed to a blast-resistant armored land vehicle configured to operate on a surface. The vehicle may include a body comprised of sheet materials, the body having a centerline and a bottom portion. The vehicle may further include a grid portion suspended below the bottom portion, the grid portion including one or more slats on each side of the centerline, wherein the one or more slats are oriented at an angle less than 90 degrees relative to the surface. Alternatively, the grid portion may include one or more vanes, each of the one of more vanes defining a V, with the apex of the V being rounded and directed towards the bottom portion.

Abstract: A stout wall assembly which self-transports under remote control or onboard machine logic is disclosed. It combines three very well understood and proven technologies into a novel, new military system for creating protected positions behind very strong cover while a formation is in motion or stationary. The wall assembly is unmanned and is designed to sacrificially block any destructive effects directed at the protected object in its lee. It provides a non-pyrotechnical, passive, always-on, solid, physical barrier defense with no reaction or recycle time whatsoever, an unlimited duty cycle, and minimal possibility of fratricide or collateral damage. It can defeat or degrade kinetic energy, blast, fragmentation, fire, particulate, shaped charge, and high explosive squash head weapons and is uniquely capable against street-level improvised explosive devices.

Abstract: A composite transmission housing includes resin transfer molding or vacuum assisted resin transfer molding manufacturing processes combined with discontinuous fiber preforms. The preforms are assembled in a prepared injection and cure mold with additional details and fillers. The preforms are constructed such that the preforms are assembled into the mold in a specific order to assure proper arrangement. Using a combination of vacuum and pressure, a resin is injected into the mold to completely infuse the assembled preforms. At completion, the mold is heated to the resin cure temperature and held at this temperature for sufficient time to insure complete cure.

Abstract: A non-metallic armor article comprises a pultruded housing defining at least one cavity. A plurality of substantially dry ballistic impact resistant broad goods sheets are at least partially enclosed in the cavity and held in suspension independently within the cavity. The pultruded housing is engaged with the plurality of substantially dry ballistic impact resistant broad goods sheets by being secured to one or more of the plurality of substantially dry ballistic impact resistant broad goods sheets.

Abstract: An armor repair kit including repair putty and a scrim having a plurality of ceramic constituents attached thereto and methods for using a repair putty, scrims and kits to repair damaged armor are described herein.

Abstract: In one embodiment, hybrid body armor includes a ballistic fabric and a plurality of small ballistic plates arranged in a tightly packed array over the ballistic fabric.

Abstract: A process for producing fabrics containing at least one layer of unidirectionally arranged polymeric tapes with the tapes having at least a core component, the process including forming at least one layer of unidirectionally arranged polymeric tapes in a weaving machine with the polymeric tapes being used as warp yarn and a binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and the binding thread being used as warp yarn, and subsequently consolidating the at least one layer of unidirectionally arranged polymeric tapes using pressure and heat, wherein a melting temperature of the binding yarns lies below a consolidating temperature, and a melting temperature of the core component of the polymeric tapes lies above the consolidating temperature.

Abstract: A multilayer armor is provided that includes a first rigid layer, a second rigid layer, and an interlayer securing the first and second rigid layers to one another. At least one of the first and second rigid layers can include a plurality of regions with a physical or material property that varies between the regions. The interlayer can have a force-extension ratio of 5,600 psi/in or less. The interlayer can have a physical or material property that varies within the interlayer.

Abstract: A blast resistant vehicle hull includes an enclosure and a blast channel extending between and through a lower, outer surface of the enclosure and a surface of the enclosure other than the lower, outer surface of the enclosure. A vehicle includes a blast resistant vehicle hull. The blast resistant vehicle hull includes an enclosure and a blast channel extending between and through a lower, outer surface of the enclosure and a surface of the enclosure other than the lower, outer surface of the enclosure.

Abstract: A SiAlON armor ceramic made from a starting powder mixture including silicon nitride powder. The armor ceramic includes a ceramic body that has between about 64 weight percent and about 90 weight percent alpha SiAlON phase that contains an alpha SiAlON-bound rare earth element. The ceramic body also has between about 5 weight percent and about 35 weight percent of a beta SiAlON phase of the formula Si6?zAlzOzN8?z wherein the value of “z” ranges between about 0.10 and about 0.35. The alpha SiAlON-bound rare earth element in the alpha SiAlON phase is present as a result of the starting powder mixture that contains between about 1 weight percent and about 7 weight percent of an oxide of the alpha SiAlON-bound rare earth element. The ceramic body has a fracture toughness (KIC) greater than about 6.00 MPa·m1/2 and a Vickers hardness (HVN) equal to greater than about 19.3 GPa.

Abstract: An assembly for attenuating shock waves is made of two flexible sheets arranged one over the other and joined by a plurality of seams, the flexible sheets being confined to form cells or recessed when joined together. The seams are arranged so as to surround the cells or recesses in the sheets, and the cells or recesses are filled with a shock attenuating material.

Abstract: A structure having a first energy absorbing polymer layer, and an energy absorbing honeycomb structure formed from a continuous segment of metallic glass material having a thickness substantially less than a width, the continuous strip being bent into a repeating pattern of a teardrop shape providing an outer radius and an inner point defined by two adjacent radii.

Abstract: A composite armor panel and a method for making the armor is disclosed. In one embodiment the armor consists of a plurality of ceramic tiles (21) individually edge-wrapped with fiber or edge-wrap fabric (52), which are further wrapped with a face-wrap fabric (53A,53B), and encapsulated in a hyperelastic polymer material (31) permeating the fabric and fibers, with a front plate (42) and back plate (41) adhered to the encapsulated tiles. In one embodiment the hyperelastic polymer is formed from a MDI-polyester or polyether prepolymer, at lease one long-chain polyester polyol comprising ethylene/butylene adipate diol, at least one short-chain diol comprising 1,4-butanediol, and a tin-based catalyst.

Abstract: A barrier formed from a plurality of identical modular units that have an essentially planar front panel and triangular shaped top and bottom plates extending rearward from the front panel. Adjacent units are interconnected to one another at their terminal vertices by a square tubular member. A square shaped opening is formed approximately centrally through each of the triangular shaped plates. In addition, elongated linkages may be provided at about the midpoint of each side edge for purposes of interconnecting units that are positioned adjacent to another unit so as to assist in the formation of the overall barrier. The linkages provide pivotal movement between adjacent barriers through a range of angles from about 90 degrees (to provide a corner arrangement) to 180 degrees (to provide a straight wall arrangement).

Abstract: An armor panel for protection from a projectile having a movement spinning axis. The panel comprises armor strips attached to each other, a front face for facing the projectile, and a rear face for facing away from the front face. The strips are arranged so that at least a majority thereof is oriented transversely to at least the front face. The strips are connected to each other so that a static friction force Fs1 needs to be applied to at least partially disconnect them, and/or material from which at least some strips are made is such that a static friction force Fs2 needs to be applied to at least partially disconnect a portion thereof. At least during penetration of the projectile into the panel, a dynamic friction force between the projectile and the strips exceeds, under the respective condition, at least one of the Fs1 and Fs2.

Abstract: A bullet resistant panel member for protecting an object, for example a vehicle, from a projectile comprises inner and outer skin layers receiving a plurality of intermediate layers of woven aramid fibres therebetween. The inner and outer skin layers comprises rigid sheets of material arranged to conform to a shape of the object to be protected. Fastening members span under tension between the outer skin layer and the inner skin layer such that the intermediate layers are compressed under pressure between the outer skin layer and the inner skin layer.

Abstract: A shield kit for projectile protection and associated systems and methods. A portable shield kit is disclosed including a flexible shield configured to be fastened to a bar armor frame which is maintained a predetermined standoff distance from a structure, such as a vehicle. The shield kit can be deployed in the field to cover a portion of the vehicle. The shield is configured to prevent a projectile, such as a shaped charge, from detonating as designed.