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THE OBJECTIVE OF THIS PROPOSED RESEARCH IS TO DEVELOP NEW ANALYTIC METHODS FOR CHARACTERIZING MINE WARFARE EFFECTIVENESS. IT WILL USE A COMBINATION OF A PRIOR KNOWLEDGE OF SEQUENTIAL CHOICE OUTCOMES AND UNCERTAINTY IN SEQUENTIAL OUTCOMES. THE APPROACH WILL BE TO DEVELOP A SEQUENTIAL DESIGN ANALYSIS OF PERFORMANCE FOR INDIVIDUAL MINE FIELDS WHICH FULLY CHARACTERIZES SYSTEM PERFORMANCE LINKED TO OBJ ...

A DEFINITION OF THE INFLUENCE OF HEATING RATE ON THE MECHANICAL AND THERMAL PROPERTIES OF PHENOLIC COMPOSITES USED IN ROCKET MOTOR COMPONENTS IS REQUIRED. IN ORDER TO ACCOMPLISH THIS GOAL, IT IS NECESSARY TO FIRST DEFINE THE INDEPTH TIME-TEMPERATURE RESPONSE OF THESE PHENOLIC COMPONENTS SUBJECTED TO THE MOTOR ENVIRONMENT. ONCE THIS HAS BEEN ACCOMPLISHED, THE VARIOUS TECHNIQUES WHICH HAVE BEEN USED ...

CARBON/CARBON COMPOSITES ARE HIGH STRENGTH MATERIALS WHICH WILL BE INCREASINGLY USED IN ADVANCED AEROSPACE AND DEFENSE SYSTEMS. AS MATERIAL PERFORMANCE REQUIREMENTS BECOME MORE STRINGENT, THE CURRENT PROCESS CONTROL METHODS WILL BECOME INADEQUATE AND MANUFACTURING VARIABILITIES WILL IMPACT ON SYSTEM PERFORMANCE, COST AND RELIABILITY.CURRENT MANUFACTURING SYSTEMS RELY HEAVILY ON TEMPERATURE AND PRE ...

CARBON-CARBON COMPOSITES ARE ATTRACTIVE MATERIALS FOR HIGH TEMPERATURE APPLICATIONS BECAUSE THEY ARE LIGHTWEIGHT AND RETAIN STRENGTH AT HIGH TEMPERATURES. HOWEVER, THESE COMPOSITES BECOME SEVERELY OXIDIZED ABOVE 700 DEG F IN AIR OR AN OXIDIZING ENVIRONMENT. PREVIOUS RESEARCH AT FMI INDICATES THAT CERAMIC MATRICES CAN BE INTRODUCED INTO A FIBROUS PREFORM USING SIMILAR PROCESSING TECHNOLOGY TO CARBO ...

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TAC PROPOSES TO STUDY THE FEASIBILITY OF DETECTION AND LOCALIZING OIL DRUM SIZE OBJECTS ON/IN THE BOTTOM OF SURF ZONES. THE APPROACH IS TO ANALYZE THE PERFORMANCE PROBABILITIES AND DESIGN FEASIBILITY OF LOW FREQUENCY (20 TO 500 HZ) ACTIVE ELECTROMAGNETIC DESIGNS IN A TOWABLE, SUBMERGED HYDROFOIL CONFIGURATION. DETECTION SYSTEMS WOULD BE SUPPLEMENTED FOR LOCALIZATION BY EITHER NAVIGATIONAL FIX METH ...

CARBON-CARBON COMPOSITES ARE USEFUL HIGH TEMPERATURE STRUCTURAL MATERIALS OPPORTUNITIES EXIST FOR THEIR USE IN HOT, OXIDIZING ENVIRONMENTS, BUT PROTECTION SYSTEMS HAVE TO BE DEVELOPED TO PREVENT OXIDATION WHICH POSES A SERIOUS PROBLEM ABOVE 400 DEGREE C. CONVENTIONAL OXIDATION RESISTANT COATING SYSTEMS EMPLOYING THIN LAYERS OF EITHER SIC OR SI N CRACK WHILE UNDERGOING LARGE TEMPERATURE CHANGES DUE ...

PROTECTION OF EXOATMOSPHERIC SYSTEMS AND STRUCTURES FROM NUCLEAR EFFECTS IS REQUIRED. THE MATERIAL CANDIDATE FOR THIS TYPE OF PROTECTION IS A CARBON-CARBON COMPOSITE FOR STRUCTURAL INTEGRITY AND TUNGSTEN CARBIDE COMPONENT FOR NUCLEAR HARDENING. THE CARBON-CARBON COMBINES A HIGH STRENGTH-TO-WEIGHT RATIO IN AN INTEGRAL STRUCTURAL COMPOSITE CAPABLE OF NUCLEAR HARDENING BY THE ADDITION OF TUNGSTEN CAR ...

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