Automated Delamination Onset and Growth Prediction in Composite Structures

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,982.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-06-M-5024
Award Id:
79053
Agency Tracking Number:
F061-092-1317
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
9 Glodfinch Terrace, East Lyme, CT, 06333
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
610056405
Principal Investigator:
JimLua
Senior Principal Scientist
(860) 367-4970
geaminc@sbcglobal.net
Business Contact:
JimLua
President
(860) 367-4970
geaminc@sbcglobal.net
Research Institute:
n/a
Abstract
An automatic software tool for residual strength and life prediction of composite structure will be developed. This tool will for the first time be able to model arbitrary crack growth without user intervention or remeshing and thus provide a user-friendly, reliable tool for predicting component life. The automated delamination onset and growth prediction tool will be integrated with the ABAQUS implicit solver via its user-defined element (UEL). GEM has secured commitments for technical support from LM Aero, Bell Helicopter, and ABAQUS, who will provide supporting data, information, and expertise. In addition, our consultant, Professor Ted Belytschko from Northwestern University, will aid in basic theory development, tool development, and provide existing X-FEM solution modules that are relevant to delamination failure prediction. The multi-faceted feasibility study consists of developing a method that will enable the following 1) arbitrary insertion of multiple initial delamination cracks that are independent of the finite element mesh; 2) characterization of a growing crack without remeshing; 3) accurate extraction of strain energy release (SERR) rate using the enriched near tip displacement field via the virtual crack closure technique; 4) characterization of delamination closure via a frictional contact algorithm.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government