5599599 Fiber reinforced plastic (FRP)-concrete composite structural members

5599599 Fiber reinforced plastic (FRP)-concrete composite structural members

PatentsALERT A brake disk for an aircraft brake assembly, the assembly comprising a multi-disk stack of alternating stator and rotor brake disks where...

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PatentsALERT A brake disk for an aircraft brake assembly, the assembly comprising a multi-disk stack of alternating stator and rotor brake disks wherein each disk is comprised of a carbon composite material and a specific volume of a phase change material is encapsulated within the core of the disk between its brake wear faces and distributed so as to function to enhance brake energy capacity in the operation of the brake assembly.

5635288 BALLISTIC RESISTANT COMPOSITE FOR HARD-ARMOR APPLICATION Park Andrew D Midlothian, VA, UNITED STATES A ballistic resistant composite for hard-armor application is provided. The composite includes a rigid plate, and a ballistic laminate structure supported by the plate. The laminate structure includes first and second arrays of high performance, unidirectionally-oriented fiber bundles. The second array of high performance, unidirectionally-oriented fiber bundles is cross-plied at an angle with respect to the first array of fiber bundles, and is laminated to the first array of fiber bundles in the absence of adhesives or bonding agents. First and second polymeric films are bonded to outer surfaces of the laminated first and second arrays of unidirectional fiber bundles without penetration of the films into the fiber bundles or through the laminate from one side to the other. Thus, a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.

5643663 CARBON-CARBON COMPOSITE FRICTION MATERIAL WITH DIVIDED POROSITY Bommier Christoph; Chareire Jean-Louis Paris, FRANCE assigned to Le Carbone Lorraine A carbon-carbon composite material formed from a fibrous substrate and a matrix. The fibrous substrate has a carbon fiber base which acts as a reinforcement, a coarse texture and large sized cavities. The matrix includes pyrocarbon layers coating the fibrous substrate and a carbon based cellular structure dividing the large sized cavities of the substrate into small cavities having open porosity.

5657729 FIBER REINFORCED CERAMIC MATRIX COMPOSITE CYLINDER HEAD AND CYLINDER HEAD LINER FOR AN INTERNAL COMBUSTION ENGINE Atmur Steven Donald; Strasser Thomas Edwar Riverside, CA, UNITED STATES assigned to Northrop Grumman Corporation A ceramic cylinder head or cylinder head liner for an internal combustion engine. The cylinder head is made of a fiber reinforced ceramic matrix composite material and includes a heat sink on the top surface to keep touch temperatures at a reasonable level. The preferred embodiment employs water cooling so as to reduce engine compartment temperatures and provide a supply of hot water for passenger compartment heating.

PROCESSING

5639531 PROCESS FOR MAKING A HYBRID CERAMIC ARTICLE Chen Otis Y; Craig Harold M; Allen Glenn M; Jarmon David C West Hartford, CT, UNITED STATES assigned to United Technologies Corporation A process for making a hybrid ceramic article is disclosed. The process involves embedding an array of refractory ceramic tiles in a fiber reinforced glass-ceramic matrix composite substrate. The hybrid ceramic article so formed exhibits high thermal stability and elevated temperature load-bearing ability.

5599599 FIBER REINFORCED PLASTIC (FRP)-CONCRETE COMPOSITE STRUCTURAL MEMBERS Mirmiran Amir; Shahawy Mohsen Orlando, FL, UNITED STATES assigned to University of Central Florida Fiber reinforced plastic FRP formed about concrete piles and colunms. The FRP components generally includes an exterior shell and an interior pultruted component. The exterior shell can include multilayers of fibers wrapped in

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straight hoop patterns in single sheets with or without longitudinal axial fibers. Alternatively the exterior shell can include angled wrapped fibers. The interior FRP pultruted component comes in various forms such as pultruted ribs, crossed attached ribs, interior co-axial concentric cylinders and additional shapes such as ones having an H cross-shaped pattern. The FRP materials can consist of fiber and resin such as a preferred embodiment of approximately 60% glass and 40% polyester. Other fiber type materials include but are not limited to glass, carbon, Kevlar, combinations thereof, and the like. Types of resin include but are not limited to polyester, vinylester, epoxy, combinations thereof, and the like. The invention has the effect of waterproofing and insulating the exposed concrete columns and piles of infrastructure supports and protecting any steel/metal reinforcing bars and cages in the the cement cores from the effects of corrosion. The invention further increases the ductility of concrete support columns and piles without the use of additional steel reinforcing bars and cages. The invention can additionally enhance the compressive, flexural and shear strengths of concrete support columns and piles especially for infrastructures such as bridges, buildings and the like used in hurricane and seismic zone locations.

5635288 BALLISTIC RESISTANT COMPOSITE FOR HARD-ARMOR APPLICATION Park Andrew D Midlothian, VA, UNITED STATES A ballistic resistant composite for hard-armor application is provided. The composite includes a rigid plate, and a ballistic laminate structure supported by the plate. The laminate structure includes first and second arrays of high performance, unidirectionally-oriented fiber bundles. The second array of high performance, unidirectionally-oriented fiber bundles is cross-plied at an angle with respect to the first array of fiber bundles, and is laminated to the first array of fiber bundles in the absence of adhesives or bonding agents. First and second polymeric films are bonded to outer surfaces of the laminated first and second arrays of unidirectional fiber bundles without penetration of the films into the fiber bundles or through the laminate from one side to the other. Thus, a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.

5632320 METHODS AND APPARATUS FOR MAKING CERAMIC MATRIX COMPOSITE LINED AUTOMOTIVE PARTS AND FIBER REINFORCED CERAMIC MATRIX COMPOSITE AUTOMOTIVE PARTS Atmur Steven D; Strasser Thomas E Riverside, CA, UNITED STATES assigned to Northrop Grumman Corporation A method of forming a breakage resistant, erosion resistant ceramic liner for a part comprising the steps of, forming a liner of a ceramic material containing pores; filling the pores with a pre-ceramic polymer resin; and, firing the liner saturated with a pre-ceramic polymer resin at a temperature and for a time which converts the resin into a ceramic within the pores. The liner can be mechanically attached, adhesively bonded or, a metal part can be cast onto the liner by placing the liner within the metal casting mold for the part as a sidewall or integral element thereof. The invention also includes method for producing parts and liners of fiber reinforced ceramic matrix composite by a resin transfer molding process or the like wherein fiber preforms are saturated with liquid pre-ceramic polymer resin. The preforms are then polymerized in a mold, the part removed from the mold, and then fired to transform the polymer to ceramic. The process can also be employed to form hollow parts such as manifolds.

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5639337 APPARATUS FOR THE FABRICATION OF FIBER COMPOSITES WITH A VITREOUS OR GLASS-CERAMIC MATRIX Darrieux Jean-Louis; Larnac Guy Saint Medard en Jalles, FRANCE assigned to Aerospatiale Societe Nationale Industrielle Societe Anonyme Apparatus is provide for the fabrication of fiber composites composed of a fiber-reinforced vitreous or glass-ceramic matrix by winding fibers preimpregnated with constituents of the matrix onto a mandrel. The apparatus includes a furnace into which a winding mandrel can be introduced; elements for driving the mandrel in rotation around its axis inside the furnace; transit elements including a slot parallel to the axis of the mandrel positioned in the wall of the furnace for delivering fibers into the furnace; elements including a head for delivering fibers from supply spools positioned outside the furnace to the mandrel inside the furnace via the transit elements; and elements for actuating and controlling delivery of fibers and driving in rotation of the mandrel comprising elements for actuating and controlling the elements for driving the mandrel and the head for delivering the fibers as a function of winding parameters.