D. D. Whitis, R. Maffeo, S. Schrantz, GE Aviation, Evendale, OH; D. Mourer, D. Wei, GE Aviation - Lynn, Lynn, MA; P. Finnigan, GE Global Research Center, Niskayuna, NY; D. Backman, Worchester Polytechnic Institute, Worchester, MA
DARPA’s Accelerated Insertion of Materials (AIM) initiative was formulated to reduce the cycle time of material and process development for aircraft engines by up to 50% through the application of materials modeling and systems engineering tools. At GE, the program has established multi-scale, linked models that simulate materials processes and predict materials microstructures and mechanical properties. By incorporating methods for determining uncertainty, the AIM approach can account for variations in processing history, microstructural features, and both measurement and modeling errors. A Trade Study Tool is then used to allow designers to directly modify and optimize on the material properties required to meet their component design requirements. AIM has developed a new methodology for predicting material behavior early in the development process with reduced reliance on mechanical tests and tighter linkage to concurrent design engineering analyses. This presentation will provide an overview of the AIM system, highlights of accomplishments of GE’s effort under the DARPA AIM program, and the status of AIM within GE Aircraft Engines, including a description of its application to analyze the effects of heat treatment on the mechanical properties of a forged nickel-based superalloy.
DARPA’s Accelerated Insertion of Materials (AIM) initiative was formulated to reduce the cycle time of material and process development for aircraft engines by up to 50% through the application of materials modeling and systems engineering tools. At GE, the program has established multi-scale, linked models that simulate materials processes and predict materials microstructures and mechanical properties. By incorporating methods for determining uncertainty, the AIM approach can account for variations in processing history, microstructural features, and both measurement and modeling errors. A Trade Study Tool is then used to allow designers to directly modify and optimize on the material properties required to meet their component design requirements. AIM has developed a new methodology for predicting material behavior early in the development process with reduced reliance on mechanical tests and tighter linkage to concurrent design engineering analyses.
This presentation will provide an overview of the AIM system, highlights of accomplishments of GE’s effort under the DARPA AIM program, and the status of AIM within GE Aircraft Engines, including a description of its application to analyze the effects of heat treatment on the mechanical properties of a forged nickel-based superalloy.
