Award Data

We propose to demonstrate the ability to non-evasively probe the characteristics of material properties using acoustical waves through thermal conversion of a remote laser pulse. The advantages of proposed system as an inspection and identification technique are: 1) Non-contact: Sensor does not require contact with container 2) Stand-off: Sensor could be located many meters away from container 3 ...

The intensity ratio of forbidden-to-allowed transitions in Li and He have been used to determine both turbulent electric fields due to plasma instabilities and quasi-static applied electric fields in low density and temperature plasmas. HY-Tech proposes to extend this technique to the plasma temperatures and densities encountered in plasma radiation sources. In this case uv spectra of Li-like and ...

BOTH CURRENT (INF) AND PROPOSED (SALT) ARMS CONTROL TREATIES WILL REQUIRE MEANS OF VERIFICATION AND COUNTING OF MISSILES. CURRENT PROVISIONS PRECLUDE LOOKING INSIDE VEHICLES AND UNDER COVERS. ONE METHOD OF VISUALIZING CONTENTS WILL BE BY X-RAY, HOWEVER, CURRENT X-RAY FILMS ARE LIGHT-SENSITIVE AND REQUIRE CHEMICAL PROCESSING AND BECAUSE OF THIS, MAY NOT BE SUITABLE FOR DIFFICULT ENVIRONMENTS IN THE ...

Materials and Manufacturing Systems, Inc. (MATSYS) proposes to develop novel reactive structural materials for the enhancement of munitions lethality. This effort will combine our unique expertise in instrumented-Hot Isostatic Pressing (HIP) with new approaches in intermetallic design to develop a new generation of cost-efficient, high strength and reactive composites. The proposed material syst ...

The objective of this proposal is to demonstrate the feasibility of utilizing a three-dimensional spatial display to visualize information from a time-varying hazard prediction model. A spatial 3D display offers true volumetric projections of data and allows observers to gain insight of hazard information that is not possible with conventional 3D graphical scenes on a 2D surface or with presented ...

Using distributed interactive simulation (DIS) to conduct effective training, analyses, or mission support in a tactical nuclear weapons effects (NWE) environment requires realistic computer generated forces (CGF) that are sensitive to such effects. This level of sensitivity requires CGF to apply valid and reliable speed-accuracy measures of environmental effects on human performance within the D ...

DEEP BASING FACILITIES REQUIRE THAT STRUCTURES BE PROTECTED AGAINST BLAST EFFECTS. INHERENT IN THIS NEED IS FOR THE TUNNEL SUPPORT SYSTEM TO BE ECONOMICALLY INSTALLED AND CAPABLE OF WITHSTANDING OVERSTRESSES WHICH MAY REACH OR EXCEED 1 KILOBAR. IN ORDER TO MORE EFFICIENTLY HARDEN A STRUCTURE, THE SUPPORT SYSTEM SHOULD BE MADE MORE DUCTILE SO THAT IT CAN UNDERGO DEFORMATION WHILE RETAINING ITS ABIL ...

ADVANCED STRUCTURAL MATERIALS USED IN THE FABRICATION OF SUBMARINES CAN SUSTAIN LARGE STRAINS DURING THE FORMATION PROCESS CAUSED BY EXPLOSIVE LOADINGS. THE COMPUTATIONAL SOLID MECHANICS COMMUNITY HAS RECENTRLY RECOGNIZED SERIOUS SHORTCOMINGS IN CALCULATIONS USING MATERIAL MODELS IN THIS LARGE STRAIN REGION. BECAUSE OF THE IMPORTANCE OF CALCULATIONS IN UNDERSTANDING THE SHOCK RESPONSE OF SUBMARINE ...

We propose a stochastic-finite-element based methodology to address these requirements: (i) Characterize material variability; (ii) Quantify corresponding ground-shock variability; and (iii) Design instrumentation plan. The site is discretized into N finite-elements; rock properties over this domain are characterized as the components of an N-vector stochastic field. The probabilistic characterist ...

Weidlinger Associates Inc. proposes to develop effective technology for simulating explosive detonations within civil buildings where the propagation of airblast and failure of weak internal walls are strongly coupled. We will conduct a field test program designed to complement other internal detonation testing efforts such as DTRA''s Distinct Cobra, expanding the available database. We will perfo ...