Total Fatigue Life Assessment of Complicated Structures
Navy STTR FY2012.A


Sol No.: Navy STTR FY2012.A
Topic No.: N12A-T006
Topic Title: Total Fatigue Life Assessment of Complicated Structures
Proposal No.: N12A-006-0321
Firm: Global Engineering Research and Technologies
2845 E. 2nd Street
Tucson, Arizona 85716-4108
Contact: Ali Boufelfel
Phone: (520) 561-5724
Abstract: Based on the foregoing, the goal of this proposed project is to develop a novel methodology based on the peridynamic (PD) theory to predict fatigue life of aerospace structures with high fidelity. A new fatigue model will be implemented in PD framework. The model and its implementation in PD will be validated against experimental measurements. A pre- and post- processor with a graphical user interface will be developed under widely distributed commercial FE software. When complete, this approach will enable the designers/engineers to consider complex component geometries under various loading conditions while accounting for multiple cracks exhibiting complex patterns forming non-planar 3-D surfaces.
Benefits: The Phase I effort will establish the validity, merit and feasibility of the proposed approach for prediction of fatigue life with high fidelity. This effort will serve as the foundation for the Phase II development effort. The proposed project addresses the development of a validated methodology that is projected to serve DOD branches and non-DOD entities (government and private) in their design and development effort with aerospace structures. The proposed approach will be rapidly accepted into markets of interest.

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