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Showing 1 to 20 of 25 for “"carbon fiber composite"”.
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Design of nylon-carbon fiber composite gears
… Gear Manufacturers Association (AGMA) to a nylon-carbon composite material for the purpose of additive manufacturing (AM). Calculations for load carrying capacity and operating temperature are used to optimize a design that was previously constrained by conventional manufacturing technology. A …
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ENHANCEMENT OF HIGH-SPEED FLYWHEEL ENERGY STORAGE VIA CARBON-FIBER COMPOSITE REINFORCEMENT
… flywheel energy storage is to investigate composite materials that are suitable for high-speed, high-energy density for energy storage and/or energy recovery. The main motivation of the study is to explore the application of the flywheel in the aviation industry for recovering some of the …
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Design and Optimization of Carbon-Fiber Chassis Panels
… incorporate strength-bearing, tailored advanced composite materials in their structure. Examples of components that use composites in vehicles include sandwich structures in load-bearing panels, layups in the skin of vehicles for aesthetic purposes and carbon-fiber frame tubes. The VT FSAE car …
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Molecular Dynamics Model of Carbon Nanotubes in EPON 862/DETDA Polymer
… the strength while reducing the weight of carbon fiber composite materials. Adding single walled carbon nanotubes (SWCNT) to a polymer matrix can achieve that goal by improving delamination properties of the composite. Due to the complexity of polymer molecules and the curing process, few …
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Modeling and Feedback Control for a Guyed, Flexible, Tubular Lunar Tower
… Instruments (SELTI) is a compact, self-deploying composite lunar tower being developed in support of the NASA Artemis campaign. SELTI can elevate instrument payloads for the purposes of navigation, power beaming, communication, sensing, and imaging around permanently shadowed lunar regions. SELTI …
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Optical fiber detection of ultrasonic vibration and acoustic emission
… for detecting acoustic emissions (AE) inside composite structures. The basics of wave propagation inside of materials has been presented along with an overview of typical acoustic emission testing. Surface acoustic waves (SAWs) were studied first and a novel, noncontact optical interferometric …
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Detecting Delamination in Carbon Fiber Composites Using Piezoresistive Nanocomposites
<p>Carbon fiber prepreg composites are utilized successfully as structural materials for different lightweight aerospace applications. Delamination is a critical failure mode in these composite materials. As composite plies separate from each other, the composite loses some of its ability for …
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Study of Wave Propagation in Damaged Composite Material Laminates
The characteristics of carbon fiber composites have enabled these materials to be accepted as replacements for metal parts in industry. However, due to their unsymmetrical material properties, carbon fiber composites are susceptible to damage, such as a delamination, which can cause premature …
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Life Prediction of Composite Armor in an Unbonded Flexible Pipe
Composite materials are under consideration for the replacement of steel helical tendons in unbonded flexible pipes utilized by the offshore oil industry. Higher strength to weight ratios and increased corrosion resistance are the primary advantages of a composite material for this application. The …
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Modeling Damage Evolution and Damage Healing using Data Driven Method
<p>Advanced aircraft use composite materials in over 50% of their airframe structures. Defects in composite materials frequently arise during manufacturing and processing phases, greatly affecting structural integrity and reliability. The intrinsic self-healing polymers are smart materials that …
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An experimental study on the performance of existing and custom quiet propeller designs for unmanned aircraft systems
… was devised and outlined which results in a carbon fiber composite prototype propeller. A custom semi-anechoic chamber testing environment was constructed which allowed for adequate airflow reducing the performance reducing effects of local pressure regions from the inlet and exhaust of the …
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Shape Optimization of a Sandwich Composite Plate with Low-Velocity Impact Loading and Effect of Finite Difference Sensitivity Analysis
… A typical spacesuit is made of sandwich composite material and designed to withstand various pressure and loading conditions while also considering the safety and comfort of the astronauts. One of the critical load cases in spacesuit design is a low-velocity impact (LVI) which may occur …
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A piezoelectric translational flow agitator for active air cooling of electronics.
… the theoretical analysis. The blade, made of carbon fiber composite, is easily extended to a multiple-blade system without adding much mass. The micro pin fin arrays were created with the LIGA photolithography technique. The cooling performance of the heat sink system was demonstrated in …
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Graphene Decorated Substrates and Their Interfacial Characteristics
<p>Carbon nanotubes and graphene have been extensively studied for their excellent properties. As research on carbon expands, two major issues face the scientific community: (i) Expanding the scale of synthesis and (ii) Integration of different carbon structures for improved functionality. While …
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On-Line Consolidation of Thermoplastic Composites
… has been designed and constructed to fabricate composite parts from thermoplastic towpregs. A statistical approach was used to determine the significant processing parameters and their effect on the mechanical and physical properties of composite cylinders fabricated by on-line consolidation. A …
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The Effect of Atmospheric Aging on a Hybrid Polymer Matrix Composites' Material Properties
… of the load bearing unidirectional hybrid composite (based upon glass and carbon fibers reinforcing a high temperature epoxy matrix) of a next generation transmission line design were investigated in this research. In particular, the flexural performance (in both static and fatigue loading) …
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Generation of Recyclable Liquid Crystalline Polymer Reinforced Composites for Use in Conventional and Additive Manufacturing Processes
The application of glass fiber reinforced composites has grown rapidly due to their high strength-to-weight ratio, low cost, and chemical resistance. However, the increasing demand for fiber reinforced composites results in the generation of more composite wastes. Mechanical recycling is a …
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Failure Mode Identifications Of Rc Beams Externally Strengthened With
The application of carbon reinforced-fiber polymers (CFRP) to structures is a new development that is still under intense research. However, the rehabilitation or retrofit of damage reinforced concrete members by the external bonding of CFRP is becoming increasingly popular in the construction …
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Galvanic Corrosion of Aluminum/Carbon Composite Systems
<p>Aluminum/carbon composite systems can have outstanding mechanical properties. Aluminum and carbon fiber reinforced polymer matrix composites (CFRP) are typically considered corrosion resistant when used alone, but can develop severe galvanic corrosion when in physical contact in the same …
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