Award Data

The objective of this project is to develop a practical finite element-based simulation of spin-pit tests of disks. The performance of disks in spin-pit tests critically depends on localized effects, such as residual stresses, dislocations, and microstructure gradients. Therefore, a two-scale modeling approach is adopted. At the global-scale, the disk is represented by means of finite elements wit ...

NextGen Aeronautics in collaboration with Virginia Tech plan to build on our Phase I work and propose to further develop our concepts and designs for a scalable, fast and easy to use optical strain measurement system. Our proposed Phase II effort will focus on the development of a dual level optical camera system which uses one set of cameras to measure strains over the entire test specimen and a ...

A high-voltage, high-capacity, inexpensive cathode material for lithium-ion batteries (LIBs) is proposed. The cathode material employs carbon nanotubes and additional nanostructures to support efficient transport of Li ions. The resulting LIBs will support high transient and pulsed loads while offering enhanced safety and lifecycle performance. Proof-of-concept LIB cells were demonstrated in Phase ...

We propose to demonstrate and advance several key aspects of our novel, scalable ammonothermal technology for growth of high quality single crystal gallium nitride. Specifically, we propose to demonstrate a high growth rate and high crystalline quality, to design and analyze a pilot-scale reactor, and to construct and validate a quantitative model to describe the fluid dynamics of the growth envi ...

ABSTRACT: Under this collaborative effort, Creative Aero Engineering Solutions (CAES) and its academic partner University of California Los Angeles (UCLA) are pleased to team on the research entitled"Scaled Transonic Dynamic Aeroelasticity through Wind Tunnel Testing (ST-DAWTT),"consisting of a novel approach for characterizing the transonic aeroelastic environment of a full-scale fighter in the ...

ABSTRACT: Physical infrastructure is faced with a variety of security challenges including malicious insiders, hackers, and threats present within the supply chain. Hardware, sensors, and software residing in these environments may be captured or compromised by an adversary for the purpose of attacking or disrupting operations. Recent examples of attacks on such infrastructure can be found in Fla ...

We propose to develop a commercial weakly ionized plasma modeling capability based off of Tech-X’s high energy density plasma fluid code TxFluids. The new additions will be able to be used to model hypersonic vehicle physics including shock waves, plasma chemistry and innovative techniques for blackout mitigation and hypersonic vehicle control through the application of electric and/or magnetic ...

A method is proposed for the simultaneous imaging of temperature and velocity fields inside combustion chambers to enable experimental data on turbulent heat fluxes needed for model validation and development. Applications include turbine engines, afterburners, internal combustion engines, and boilers. Temperature imaging is proposed with laser-induced luminescence imaging of phosphor particles su ...

Approximately 5-6% of military injuries involve some form of major peripheral nerve injury with little chance of spontaneous healing. Currently these injuries lead to major impairment of voluntary muscle function in the limbs and extremities, making tasks of walking, reaching, grasping, etc. very difficult or impossible for many patients. It is not enough to focus therapeutic treatment on the se ...

The United States Missile Defense Agency (MDA) is searching for a software-defined multi-channel radar receiver that would provide improved performance and added flexibility over currently deployed radar systems. In response, MaXentric is proposing a system codenamed MASR (Manycore Adaptive Software Radar). The MASR system is composed of a hierarchy of X-band front-ends, high-speed digitizers, F ...