Award Data

A novel tertiary recycling process is proposed for investigation as an economical means for reclaiming scrap aircraft transparency materials. Early development work has shown that this process can convert a wide variety of polymers and composites into low molecular weight hydrocarbons at temperatures below 200 C. The hydrocarbons produced can then be reused as chemicals, fuels, or monomers. Met ...

Cured aircraft composite materials present a particularly difficult challenge for recycling technology. Those materials have mostly thermosetting epoxy matrices and occur in intimate association with metals, paints, and coatings. Current techniques for recycling thermoset composites, mostly for automotive sheet molding compounds (SMC), involve pulverizing the material for use as fillers. Th ...

A novel tertiary recycling process is proposed for investigation as an economical means for recycling shipboard plastic waste. Early development work has shown that this process can convert a wide variety of polymers and composites into low molecular weight hydrocarbons at temperatures below 200'C. The hydrocarbons produced can then be reused as chemicals, fuels, or monomers. Metal, glass, and fil ...

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Future battlefields will require independent operations and increased operational tempo, placing severe burdens on weapons platform crewmembers in the areas of information flow management, data fusion, and assessment of data to arrive at the most tactically acceptable decisions. Work continues in the development of decision aids to assist direct/indirect fire weapon platform commanders in accompl ...

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The nuclear weapons community has traditionally focused on the next generation or level of weapon capability complimented by gathering and analysis of actual test data. Now, with the cessation of actual weapons testing, there is an increased need to use the actual test data in modeling techniques to better understand the phenomenology and potential effects of nuclear weapons. The first phase of ...

STANDARD TOADS CRYSTALS DO NOT PERFORM CONSISTENTLY AT LOW OVERPRESSURES DUE IN PART TO LOW SIGNAL OUTPUT OF THE PZT CRYSTAL AND ALSO DUE TO ELECTRICAL CROSSTALK. WE PROPOSE TO INVESTIGATE TWO TOA TRANSDUCER TYPES THAT ARE PROVEN CONCEPTS IN OTHER APPLICATIONS. WE WILL DESIGN TECHNICIAN FRIENDLY INTERFACES FOR THESE MEASUREMENT SYSTEMS. THE PHASE I DESIGN WILL INTERFACE WITH STANDARD TOADS III REC ...

DEVELOPMENT OF AN INNOVATIVE AND ECONOMICAL EXPERIMENTAL METHOD IS PROPOSED WHICH CAN PROVIDE THE BASIC BEHAVIOR DATA NECESSARY TO MEET THE DNA OBJECTIVE OF PROVIDING ADEQUATE ANALYSIS, DESIGN AND ASSESSMENT METHODS FOR MINIMALLY HARDENED TUNNELS. THIS DEVELOPMENT IS ACCOMPANIED BY ANALYSIS CAPABLE OF REPRESENTING THE COMPLEX INELASTIC MATERIAL BEHAVIOR OF THE ROCK MASS AND OF REPRESENTING SIMPLE ...

A METHOD FOR THE EVALUATION AND OPTIMIZATION OF EXPLOSIVE MATERIAL CHARACTERIZATION IS PROPOSED. DAMAGE OF A RIGID RUNWAY CONCRETE SLAB WILL BE OPTIMIZED FOR VARIOUS EXPLOSIVE ENERGY RELEASE RATES. THE STEPS FOR THE PROGRAM ARE: 1) COLLECTION AND EVALUATION OF RUNWAY TEST DAMAGE RESULTS, 2) PRELIMINARY LITERATURE SEARCH FOR APPROPRIATE HYPERGOLIC ENERGY RELEASE RATE, 3) NUMERICAL SIMULATION OF EXP ...