A NEW COMBINATORIAL SYNTHESIZER

Not Available Innovative research and development leading to a dual-use advanced technology product is proposed. The product is a methodology and software for design and life prediction of ceramic matrix composite (CMC) engine components. The primary focus is on a Nicalon/SiC composite, which is the prime candidate material for JTAGG III combustor liners. But the software and methodology win be applicable to a much broader class of CMCs for military and commercial applications. The product is of direct and immediate use to AlliedSignal Engines, Pratt ~ Whitney and other IHPIET Prime Contractors for design and development cost and risk reduction. Additionally, the product will be highly marketable to commercial jet engine, space propulsion systems, and industrial gas turbine manufacturers. Phase I win involve the development and validation of crucial modeling techniques for predicting the initiation and growth of relevant damage mechanisms. Full advantage will be taken of recent test data as wed as modeling techniques developed under various DoD and NASA programs. Additionally, RAI will work closely with AlliedSignal Engines to ensure that the proposed research and development and the product are directly relevant to JTAGG m. The Phase I innovative research effort will focus on developing and validating mechanism based (mechanistic) modeling methods to describe CMC response under general stress states and load conditions, and thermal and environmental conditions of interest in JTAGG