Innovative Analysis Tool for Damage Growth From Loaded Composite Fastener Holes

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0455
Agency Tracking Number: N092-095-0798
Amount: $79,918.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: N092-095
Solicitation Number: 2009.2
Small Business Information
2845 E. 2nd Street, Tucson, AZ, 85716
DUNS: 627888675
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Ali Boufelfel
 Senior Scientist
 (520) 829-7655
Business Contact
 Ibrahim Guven
Title: VP
Phone: (520) 829-7655
Research Institution
For the Phase I effort, Global Engineering and Research Technologies (GERT) will develop a validated analysis tool to predict damage initiation and growth as well as residual strength composite multiple-lap joints with many staggered bolts. The analysis tool will be based on the merger of (local) classical continuum theory and (non-local) peridynamic theory. The Phase I effort will consider published experimental investigations in the validation of the proposed approach. The predictions will be compared against the measured failure loads and photo micrographs of failure modes. This effort will also demonstrate the feasibility of the proposed method by considering bolted lap joint configurations with multiple staggered bolts and multiple layers of different composite materials. Finally, the proposed method will be integrated into user friendly software modules that can be used to perform damage growth and life prediction of loaded holes in composite laminates.

* Information listed above is at the time of submission. *

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