Innovative Analysis Tool for Damage Growth From Loaded Composite Fastener Holes

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,918.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
N68335-09-C-0455
Agency Tracking Number:
N092-095-0798
Solicitation Year:
2009
Solicitation Topic Code:
N092-095
Solicitation Number:
2009.2
Small Business Information
Global Engineering Research and Technolo
2845 E. 2nd Street, Tucson, AZ, 85716
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
627888675
Principal Investigator:
Ali Boufelfel
Senior Scientist
(520) 829-7655
aboufelfel@gertechnologies.com
Business Contact:
Ibrahim Guven
VP
(520) 829-7655
iguven@gertechnologies.com
Research Institution:
n/a
Abstract
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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