Fretting Fatigue Modeling and Life Prediction
Navy SBIR FY2006.2


Sol No.: Navy SBIR FY2006.2
Topic No.: N06-126
Topic Title: Fretting Fatigue Modeling and Life Prediction
Proposal No.: N062-126-0159
Firm: NextGen Aeronautics
2780 Skypark Drive
Suite 400
Torrance, California 90505
Contact: Adarsh Pun
Phone: (310) 626-8653
Web Site: www.nextgenaero.com
Abstract: An innovative approach for predicting initiation and crack growth of structures subjected to fretting is proposed. The research will utilize, modify and build upon existing state-of-the art fatigue and fracture modules in an advanced CAE framework that will result in efficient models that use the multiaxial stress state due to fretting to determine crack initiation and crack growth life subjected to realistic high cycle engine fatigue spectra.
Benefits: Analytical fretting fatigue models that accurately predict initiation and crack growth provide the great potential for mitigating high costs associated with unscheduled maintenance and repair due to fretting damage. This project will develop models that will become an essential part of future predictive maintenance concepts.

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