Award Data

Although numerical analysis applications have proven to be effective and reasonably accurate, the effort required to develop the associated analysis models remains a challenging and time consuming task. While many meshing tools are currently available, decomposing and manipulating the design geometry and enhancing the topology for mesh construction are manual processes and place the heaviest dema ...

In Phase I, technical and commercial feasibility was demonstrated for the application of friction stir processing (FSP) following by superplastic forming (SPF) of a 5083 aluminum alloy, and for FSP following by room temperature bending. An application showing significant promise for FSP followed by SPF is an aluminum water tight door. The use of FSP followed by SPF enables a significant part co ...

The Oceanit¡¦s/APL Foveal InfraRed Search and Track (FIRST) prototype is a dual channel cryogenic WFOV optical sensor system. FIRST provides multifaceted support for an airborne IR search and track and uses the unique Multi-target-tracking Optical Sensor-array Technology (MOST) sensor chip, which has been developed at MDA. FIRST supports instantaneous field-of-view up to 90 degrees, with 360 deg ...

The objective of this proposal is to develop advanced radiation transport modeling techniques that accurately and efficiently treat transport in media having widely varying optical properties; in particular, hot gases and plasmas with optical depths ranging from the optically thin to the optically thick regimes. We will develop a hybrid diffusion-Monte Carlo (HDMC) model that efficiently transpor ...

Cornerstone Research Group Inc. (CRG) and the University of Colorado at Boulder (CU-Boulder) will continue to establish the understanding of materials and mechanical interaction necessary to develop modeling capabilities, interface design, and fabrication processes for fastening morphing skins. During Phase I, CRG and CU-Boulder were successful in constitutive model development and prediction of m ...

This will facilitate the development of remedial approaches for existing facilities and assist in planning new facilities, logistics, and procedures to protect the environment without impairing critical mission functionality. The commercial application will include software distribution and updates.

There is an increasing demand for high temperature sensors that operate accurately and reliably in extreme environments and they are vital in several aerospace applications. This aim was directly addressed by a novel idea where microstructural changes caused by phase transformation and the attendant physical property changes that can be easily measured is used as a sensor. In Phase I of this progr ...

Field-emission electron-emitting arrays hold promise for use in high current-density electron-beam devices as replacement for power consuming thermionic emitters. Large field-emitter arrays, however, are limited in total current due to non-uniformity and resulting instability problems. As a solution to these problems current-limiting devices, such as a field-effect transistor (FET) for each emitte ...

The primary objective of this Phase-II research effort will be to build, deliver, and test a next-generation time-domain ballistic photon imaging (BPI) system based on ultrafast lasers for characterizing the two-phase combustion region within bi-propellant rocket engines. This will include integration into a rocket facility of choice for the Air Force Office of Scientific Research and the Air For ...

Jet engine disk components are increasingly subjected to higher operating temperatures. To meet the demands of increasing thrust and higher operating temperatures, a newer generation of nickel based superalloys such as LSHR, Alloy 10, Rene104 and RR1000 are being processed with dual microstructure distributions. Fine grain, high strength, fatigue resistant bore properties are contrasted with co ...