Abstract: A method of manufacturing a composite structural member including laying up a stack of fiber reinforced laminate plies, wherein at least one of the plies is laid up as discrete first and second ply portions, and the fibers of the second portion have a different characteristic from those of the first portion. Also, a composite structural member manufactured according to the method.

Abstract: Provided are the following: a sandwich structure formed from a core component comprising a discontinuous reinforcing fiber, a thermoplastic resin and voids, and a skin component comprising a continuous reinforcing fiber and a matrix resin, wherein in the core component, 30% or more of the discontinuous reinforcing fiber is covered with the thermoplastic resin and monofilaments of the discontinuous reinforcing fiber intersect one another via the thermoplastic resin; an integrally formed article using the sandwich structure; and methods for the production therefor.

Abstract: An add-on weaving method, a device based on this method, 3D fabric items producible by this method and device, and composite materials reinforced with such 3D fabric items. The 3D fabric items are produced directly by the add-on weaving process using Complementary Fabric, warp yarns and weft yarns. The interacting woven fabric produced by interlacing the warp and weft yarns is simultaneously integrated with the Complementary Fabric used. The Complementary Fabric and interacting woven fabric integrate in mutual through-thickness directions at their intersecting planes and create directly 3D fabric items which are useful for manufacturing delamination resistant and high-performance composite materials.

Abstract: The present invention includes a diblock copolymer system that self-assembles at very low molecular weights to form very small features. In one embodiment, one polymer in the block copolymer contains silicon, and the other polymer is a polylactide. In one embodiment, the block copolymer is synthesized by a combination of anionic and ring opening polymerization reactions. In one embodiment, the purpose of this block copolymer is to form nanoporous materials that can be used as etch masks in lithographic patterning.

Abstract: This relates to a composite structural element, in particular a rib or a spar, specifically for use in a torsion box of an aircraft structure such as a vertical tailplane, wherein the structural element defines a coordinate system with a first axis “a” wherein the structural element comprises a substantially planar main section defining a coordinate system with a first axis “a” extending along the longitudinal axis “L” of the structural element and a second axis “b” extending perpendicular to said longitudinal axis “L” within the planar main section and defining an angle of +90° with the first axis “a”, wherein the structural element contains a lay-up of single plies consisting of a fiber-reinforced composite material with a substantially unidirectional fiber orientation.

Abstract: This invention relates to a process for the preparation of an antiballistic article, the method comprising: a) Providing a transparent uniaxially stretched polymeric film with at least one layer I comprising a semi-crystalline thermoplastic polymer A and at least one layer II comprising an amorphous or semi-crystalline thermoplastic polymer B, of which polymer B has a glass transition temperature less than the melting temperature of polymer A if polymer B is amorphous or of which polymer B has a melting temperature less than the melting temperature of polymer A if polymer B is semi-crystalline; b) Stacking at least two of the uniaxially stretched polymeric films of a) at an angle a of between 45° and 135°, such that the films are in contact with each subsequent film through at least one layer II, to form an assembly; c) Compressing the thus formed assembly at a temperature above the glass transition temperature of polymer B if polymer B is amorphous, or above the melting temperature of polymer B if polymer B

Abstract: Structures for contacting a fin-type field-effect transistor (FinFET) and associated methods. First and second gate structures are formed. The second gate structure is separated from the first gate structure by a space that crosses over a top surface of a fin. At least one layer is formed in the space, and a hardmask layer is formed on the at least one layer. An opening is formed in the hardmask layer at a location that is above the top surface of the fin and that is between the first gate structure and the second gate structure. The at least one layer is etched at the location of the opening to form a contact hole extending through the at least one layer to the top surface of the fin. A contact, which is formed in the contact hole, is coupled with the top surface of the fin.

Abstract: Provided are assemblies, each including a first structure having a uniform coefficient of thermal expansion (CTE) and a second composite structure having a variable CTE. Also provided are methods of forming such assemblies. The second structure has overlap, transition, and baseline regions. The overlap region directly interfaces the first structure and has a CTE comparable to that of the first structure. The baseline region is away from the first structure and has a different CTE. Each of these CTEs may be uniform in its respective region. The transition region may interconnect the baseline and overlap regions and may have gradual CTE change from one end to the other. The CTE variation with the second composite structure may be achieved by changing fiber angles in at least one ply extending through all three regions. For example, any of the plies may be subjected to fiber steering.

Abstract: A composite laminate includes two composite layers, at least one metal mesh of high strength and high capability of absorbing impact energy, and multiple unidirectional fibrous layers, wherein the metal mesh and the unidirectional fibrous layers are disposed between the two composite layers. By adding the metal mesh to a composite laminate for making parts, such as front forks, frames, and seat posts of bicycles, an interlocking structure can be formed in the composite laminate. Due to the metal mesh having high strength and toughness, a part being formed of the composite laminate will have a high strength and an enhanced impact resisting capacity and thus can be prevented from brittle fracture. Furthermore, with the metal-reinforced composite laminate, a failure of the part can be warned at an earlier time, so that the part can be prevented from catastrophic damages, thus ensuring safety for users.

Abstract: The present technology provides armor articles for use in body armor, vehicle armor, and aircraft armor, including helicopters. The armor articles include a ceramic plate having a front surface and a rear surface; a polymer backer affixed to the rear surface of the ceramic plate, wherein the polymer backer comprises a laminate of at least two layers of material, each layer comprising a ballistic fabric; and self-repair conduits on the front surface of the ceramic plate and covered by a layer of material, wherein the self-repair conduits contain a self-repair composition. The present armor articles are light weight yet can still sustain multiple hits by armor piercing bullets. Armor articles may also be produced without the ceramic plate.

Abstract: Provided is a fabric that is favorably used for a side cloth of a down wear, a down jacket, a futon, a sleeping bag or some other, and that is light, thin and high in tear strength and can further keep a low air permeability after washed. The high-density fabric of the present invention that can attain the purpose is a fabric including a synthetic fiber that has a fineness of 28 dtex or less, and having a total cover factor ranging from 1700 to 2200. In this fabric, multifilaments are present in each of which monofilaments are arranged in the form of two layers in at least one direction of warp and weft directions. Furthermore, the fabric has a cover factor ranging from 700 to 900 in at least one direction of the warp and weft directions which has the multifilaments present.

Abstract: The invention relates to a multilayered material sheet comprising a consolidated stack of unidirection monolayers of drawn ultra high molecular weight polyolefine. The draw direction of two subsequent monolayers in the stack differs. Moreover the thickness of at least one monolayer does not exceed 50 ?m, and the strength of at least one monolayer is comprised between 1.2 GPa and 3 GPa. The invention also relates to a ballistic resistant article comprising the multilayered material sheet and to a process for the preparation of the ballistic resistant article.

Abstract: A method for reworking a ceramic structure. A portion of a first facesheet is removed from the ceramic structure to form a first aperture. The first facesheet comprises a number of layers of a first ceramic material. A portion of an inner section of the ceramic structure is removed to form a second aperture. The second aperture extends from the first aperture into the inner section. The inner section comprises a second ceramic material bonded to the first facesheet and has a lower density than the first facesheet. A ceramic replacement material is placed in the second aperture. A number of replacement ceramic layers are placed in the first aperture. Ceramic particles are placed between the first facesheet and the number of replacement ceramic layers. The ceramic particles are sintered to bond the number of replacement ceramic layers to the first facesheet.

Abstract: An antiballistic fabric comprises a first fabric ply made of two outer fabric layers separated by at least one inner fabric layer, each of the layers being constructed only from weft fibers laid at angles between about +30 and ?30 degrees from the warp and the fibers of the outer layer form non-complementary angles with the fibers of the inner layers, the layers being knitted together in the z-direction. A second equivalent fabric ply is aligned and bound above the first fabric ply.

Abstract: A radius filler for a composite assembly may include a pair of vertical ply stacks positioned in back-to-back relation. Each one of the vertical ply stacks may be formed of one or more thick plies of composite material formed in an L-shaped cross-section having a vertical leg and a lateral leg interconnected by a stack radius and defining a crescent region. At least one of the crescent regions may include one or more thin plies of composite material positioned adjacent to a stack radius inner surface. Each one of the thin plies may have a ply thickness that is less than the ply thickness of the thick plies.

Abstract: Provided are a curable composition and its use. The curable composition can exhibit excellent processibility and workability. The curable composition exhibits excellent light extraction efficiency, hardness, thermal and shock resistance, moisture resistance, gas permeability and adhesiveness, after curing. In addition, the curable composition can provide a cured product that exhibits long-lasting durability and reliability, and that does not cause whitening and surface stickiness even under harsh conditions.

Abstract: A method for joining parts to be joined which are subject to tolerance in the aerospace sector. The method involves determining the geometric data of a first and second part to be joined, determining the joining gap dimensions of the first and second parts from the determined geometric data and arranging a plurality of shape elements which can be connected together in planar manner in a first region of a surface of the first part. The method moreover comprises application of a first adhesive layer onto the plurality of shape elements and in a second region of the surface of the first part. The method finally involves joining the first and second parts, the first adhesive layer being brought into contact with the surface of the second part. A corresponding apparatus is provided for joining parts which are subject to tolerance in the aerospace sector.

Abstract: This invention relates generally to an article that includes a non-wetting surface having a dynamic contact angle of at least about 90°. The surface is patterned with macro-scale features configured to induce controlled asymmetry in a liquid film produced by impingement of a droplet onto the surface, thereby reducing time of contact between the droplet and the surface.

Abstract: A composite laminate has a primary axis of loading and comprises a plurality resin plies each reinforced with unidirectional fibers. The laminate includes cross-plies with fiber orientations optimized to resist bending and torsional loads along the primary axis of loading.

Abstract: A blown-film process for making a fiber-reinforced film comprises providing and melting at least one thermoplastic resin. The at least one thermoplastic resin is extruded through an extension die to form a film bubble. A plurality of fibers is introduced inside of the film bubble. The fibers are distributed inside of the film bubble. The film bubble is collapsed after introducing the plurality of fibers so as to form a fiber-reinforced film. The fiber-reinforced film has a first thermoplastic layer, a second thermoplastic layer, and a plurality of fibers dispersed therebetween. The film may be formed in a bag.

Abstract: The present invention provides a printed circuit board (PCB) board, a core for manufacturing the PCB board and a method for manufacturing the PCB board. The PCB board is in a shape of a rectangle and comprises a fiber layer formed of interlacedly weaved fiberglasses, a metal layer affixed onto a surface of the fiber layer, and a pair of differential signal traces formed on the metal layer, wherein extending directions of the fiberglasses lie at acute angles with respect to a length direction of the rectangle, and the pair of differential signal traces extends along a width direction or the length direction of the rectangle. The PCB board can effectively reduce the possibility of the skew distortion during the transmitting process of the differential signal through adjusting the angle between the fiberglasses and the edge of the core without adjusting or redesigning the original circuit layout.

Abstract: A diblock copolymer system that self-assembles at very low molecular weights to form very small features is described. One polymer in the block copolymer contains silicon, and the other polymer is a polylactide. The block copolymer may be synthesized by a combination of anionic and ring opening polymerization reactions. This block copolymer may form nanoporous materials that can be used as etch masks in lithographic patterning.

Abstract: Buoyant armor for jacketed rounds includes an outer, laminate reinforced strike face having a hardness greater than 640 Brinell. The strike face is configured to strip the jacket off a projectile as it passes through the strike face and to rotate the projectile. An inner, laminate reinforced strike face is separated from the outer, laminate reinforced strike face by a spacer layer. Foam greater than 40 mm thick is disposed behind the inner strike face and is configured to disperse a round and/or its fragments and to provide buoyancy to the armor.

Abstract: A structure comprising a plurality of plies of fiber-reinforced composite material, each ply having a ply orientation defined by a principal stiffness direction of the ply. The structure has a first region and a second region, each region comprising N1 primary plies, N4 cross plies with a ply orientation substantially perpendicular to the primary plies, N2 positive-angled bias plies with a ply orientation at a positive acute angle to the primary plies, and N3 negative-angled bias plies with a ply orientation substantially perpendicular to the positive-angled bias plies. The ply orientation of the primary plies in each region is more closely aligned with a primary axis of the structure than the cross plies or the bias plies. N1=N4 in the first region but not in the second N region, and N2=N3 in the second region but not in the first region. In each of the two regions, one ply set is balanced and the other ply set is un-balanced.

Abstract: The present disclosure relates to a transparent composite material capable of exhibiting relatively high light transmittance, reduced haze, fabrication in the form of a thin film, and improved mechanical strengths (impact strength, flexural strength, etc.), by way of unidirectionally aligning glass fiber filaments without intersecting or overlapping with each other, and embedding the aligned glass fiber filaments into a transparent resin formed on a film, and a manufacturing method thereof. The transparent composite material is composed of glass fiber plates including a transparent resin, and a plurality of glass fiber filaments embedded in the transparent resin in a unidirectionally aligned state.

Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having high interlaminar lap shear strength between component fiber plies or fiber layers, which correlates to low composite backface signature. The high lap shear strength, low backface signature composites are useful for the production of hard armor articles, including helmet armor.

Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced a dynamic storage modulus, which correlates to low composite backface signature.

Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced flexural properties, which correlates to low composite backface signature. The composites are useful for the production of hard armor articles, including helmet armor.

Abstract: Ballistic-resistant assemblies include monolayers formed of high-performance polyethylene multi-filament yarns. The assemblies have an areal density of at least 1.5 kg/m2 and a specific energy absorption of at least 300 J·m2/kg as measured against a 9*19 mm FMJ Parabellum bullet according to a test procedure based on Stanag 2920.

Abstract: A ballistic-resistant article includes a stack of sheets containing reinforcing linear tension members, the direction of the linear tension members within the stack being no unidirectionally, wherein some of the linear tension members are linear tension members comprising high molecular weight polyethylene and some of the linear tension members comprise aramid. A sheet and a consolidated sheet package contain the ballistic-resistant article, and a method of manufacturing produces the ballistic-resistant article.

Abstract: Ballistic resistant composite articles that are resistant to both backface deformation and ballistic penetration. Multiple composites are attached to each other such that fibers in each adjacent composite are oriented at different angles. Each composite has an areal density of at least about 100 g/m2 wherein the areal density of the strike face composite is greater than half of the total areal density of overall multi-composite article.

Abstract: A penetration-resistant article is provided comprising two or more layers of woven fabric. The layers of woven fabric each comprise a first series of fibers aligned in a first direction and a second series of fibers interwoven with the first series of fibers and aligned in a second direction perpendicular to the first direction. Two or more layers of woven fabric are loosely stacked together so as to permit relative slippage therebetween and are rotationally offset by an offset angle selected so as to inhibit mechanical interference between opposing adjacent surfaces of the woven fabric layers during slippage therebetween. Also provided are methods for assembling penetration-resistant articles.

Abstract: This invention pertains to an article for use in body armor, comprising a plurality of discrete sheet subassemblies contoured to the shape of a female breast arranged in a stack, without bonding, such that the breast contours are positioned on top of each other, each of the subassemblies comprising at least two nonwoven layers of high tenacity yarns such as par-aramid, a binder and a resin.

Abstract: A cross laminated strand product formed from a laminate of a plurality of layers, wherein each layer includes substantially aligned strands of wood bonded together with a binder including an isocyanate resin, and wherein the respective strands of adjacent layers are oriented substantially perpendicularly to one another.

Abstract: The present disclosure is directed to a composite armor system and method of manufacturing the same including a composite armor system that includes a first bulk bonded fibrous layer, a second bonded fibrous layer bonded to the first bulk bonded fibrous layer and a third bonded fibrous layer. At least one release layer is disposed between the second bonded fibrous layer and the third bonded fibrous layer and a joining mechanism that joins the second bonded fibrous layer to the third bonded fibrous layer through apertures in the release layer into a joined bonded substratum layer. The release layer prevents bonding between the second bonded fibrous layer and the third bonded fibrous layer at opposite portions of the release layer contacting both the second bonded fibrous layer and the third bonded fibrous layer.

Abstract: Processes for the production of high strength polyethylene tape articles from high strength ultra-high molecular weight multi-filament yarns, and to the tape articles, fabrics, laminates and impact resistant materials made therefrom.

Abstract: The invention relates to a vapour barrier collar (1) comprising a number of sheet elements (2, 3, 4, 5) including side sheet elements (2, 3), which extend substantially along a longitudinal axis (L), and top (4) and bottom (5) sheet elements, respectively, which extend substantially along a lateral axis (A), which is perpendicular to the longitudinal axis (L). Each sheet element (2, 3, 4, 5) has two end edges (6) adjacent to a first edge (7) of the sheet element (2, 3, 4, 5). The sheet elements (2, 3, 4, 5) are mutually joined together in joints (8) extending along the end edges (6), and mounting means (9) are provided along the first edges (7) of the sheet elements (2, 3, 4, 5). The mounting means (9) extend uninterruptedly along the entire length of the first edge (7) of each sheet element (2, 3, 4, 5).

Abstract: Method for fabricating a reinforcing coating for a part made of composite material. Pre-impregnated reinforcing fibers are used in the form of slivers and said slivers are laid on the part in two layers of longitudinal slivers by being placed thereon. This fabrication makes provision for using an angular orientation for the slivers of each layer respectively of 0° and of some other angle relative to said determined direction of the solid body for covering using an interlaced pattern type that gives layer crossing lines parallel to a longitudinal axis of the solid body for covering, which pattern type is selected to form interlacing patterns that limit the number of layer crossing lines along the longitudinal axis of the solid body for covering to a single line.

Abstract: High tenacity, high elongation multi-filament polymeric tapes as well as ballistic resistant fabrics, composites and articles made therefrom. The tapes are fabricated from multi-filament fibers/yarns that are twisted together, bonded together, compressed and flattened.

Abstract: Tape articles having improved properties are made from ultra-high molecular weight (UHMW) multi-filament yarns. The tape articles can have a ratio of the low temperature area under the curve (120° C. to Tm-onset) to the total area under the curve (120° C. to 165° C.) of less than about 0.15 as calculated from an increasing temperature DSC scan from a temperature of 30° C. to a temperature of 200° C. at a constant rate of 10° C. per minute. Additionally, in some examples the tape articles can also have a tenacity at least about 24 g/d (2.06 GPa) when measured by ASTM D882-09 at a 10 inch (25.4 cm) gauge length and at an extension rate of 100%/min. Further, the tape articles can have no long period of less than 450 Angstroms (?) when measured by small angle x-ray analysis.

Abstract: A graphene/carbon nanotube composite structure includes a carbon nanotube film structure and a graphene film. The carbon nanotube film structure includes a number of carbon nanotubes. The carbon nanotubes form micropores. The graphene film is located on a surface of the carbon nanotube film structure. The graphene film covers the micropores.

Abstract: Reinforced concrete component with at least one upper and at least one lower longitudinal reinforcement layer, and one transverse force reinforcement. Transverse force reinforcement being passed to the upper and lower longitudinal reinforcement in its extension. The transverse force reinforcement is formed by at least 20 L-shaped sheet metal components made from structural steel with stirrups attached thereto. Each sheet metal component thereby comprises a chamfer.

Abstract: A meshwork made of ribbons (1, 2) is described which are connected with each other by way of a thermoplastic filler material. In order to provide simple constructional conditions it is proposed that the ribbons (1, 2) which are laid in at least two groups and intersect one another in groups are fixed between two cover layers (3, 4) with respect to their mutual position, which layers have an at least two-layer configuration with a bonding layer which faces the ribbons (1, 2) and is made of a thermoplastic material and with a carrier layer having a higher tensile strength, which layers are connected with each other and with the ribbons (1, 2) by way of the bonding layer.

Abstract: A waterproof breathable material has a higher strength-to-weight ratio and higher tear resistance-to-weight ratio than traditional materials, and may be applied in a wide field of potential uses. A non-woven composite material comprises at least one waterproof breathable (W/B) membrane, a first unidirectional non-woven composite layer having multiple fibers enclosed by adhesive in parallel to each other, a second unidirectional non-woven composite layer having multiple fibers enclosed in adhesive in parallel to each other. The first unidirectional non-woven composite layer is positioned such that the fibers are oriented 90° relative to the fibers of the second unidirectional non-woven composite layer, and a space is formed between the first and second multiple fibers. No adhesive is present in the space.

Abstract: Provided is an assembly including a block co-polymer film and a plurality of nano-rods; where the plurality of nano-rods are oriented at the surface of the block co-polymer film, substantially perpendicular to at least one interface between block co-polymer domains. Further provided are methods of assembly formation and devices including such assemblies.

Abstract: A shielding system for microwave ovens includes a first layer of parallel grounded conductors and a second layer of parallel grounded conductors substantially perpendicular to the conductors of the first layer and, for high frequency, electrically insulated therefrom, each layer presenting a plurality of parallel metal wires connected at one end and grounded.

Abstract: An improved laminated mat which comprises synthetic materials are provided for herein. Embodiments may include a plurality of synthetic boards disposed adjacent to each other to form a top surface. Such a top surface may be configured such that individual boards are replaceable in the event of defects, wear and the like. The top surface may be attached to a lower support layer. This layer may also include a plurality of synthetic boards arranged in a cross-hatched manner with respect to the top surface.

Abstract: A composite laminate is made by providing at least a first composite ply and a second composite ply, each having longitudinally oriented fibers in a thermoplastic matrix. The second composite ply is disposed on, and in transverse relation to, the first composite ply. Preferably, the second ply is disposed at 90° relative to the first ply. An article can be manufactured by providing a core material and applying a reinforcing material to a portion of the core material. The reinforcing material is a reinforcing composite ply or a composite laminate as described herein. Optionally, the core material is a prepreg that may be a composite laminate.

Abstract: A composite panel and its manufacture are described. Ultra-thick bamboo/wood and solid wood composite panels are comprised of core board, surface board and back board. The core board is composed of ultra-thick peeling veneers with thickness of 6 to 12 mm. Both surface board and back board are made of bamboo or wood. The core board comprises several layers of the ultra-thick veneers, and the veneers of contiguous layer are assembled with parallel structure. A glue layer is arranged between contiguous veneers; adhesive in the glue layer is aqueous macromolecule isocyanate adhesive. The ultra-thick veneers of the core layer are the veneers with stress degradation treatment, i.e., punctate or line segment cracks are formed along the grain of the veneer's loose side in each layer.

Abstract: A composite component includes a first joining partner, at least one second joining partner and a first joining layer situated between the first joining partner and the second joining partner. In addition to the first joining layer, at least one second joining layer is provided between the first and the second joining partner; and at least one intermediate layer is situated between the first and the second joining layer.