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Residual Property Prediction for Damage Composite Structures

Award Information

Department of Defense
Award ID:
Program Year/Program:
2012 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Global Engineering Research and Technolo
2845 E. 2nd Street Tucson, AZ 85716-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2012
Title: Residual Property Prediction for Damage Composite Structures
Agency / Branch: DOD / ARMY
Contract: W31P4Q-13-C-0012
Award Amount: $150,000.00


During a components service life, damage due to high or low energy impact may be introduced, which may lead to premature failure of these structures. Component level structural testing and analysis of advanced composites is prohibitively expensive and time consuming. Instead, using robust and accurate computational tools complemented by experiments at key stages is a viable and cost-effective option. Currently, there is no analysis capability that can predict all possible failure modes concerning advanced composites because damage initiation and its progressive growth is very complex, and that commonly accepted methods, such as finite element method or smoothed-particle hydrodynamics, break down. However, damage prediction in peridynamic theory (PD) is more realistic than the methods utilizing the classical continuum theory since the PD considers material failure as a part of the material response without resorting to any external damage criterion. Therefore, the PD appears to be the best candidate for damage assessment in advanced composite structures. The goal of this proposed project is to develop a methodology for accurate prediction of damage due to blast and penetration events as well as low-energy impacts, and determination of the residual strength resulting from these events on advanced composite structures and components.

Principal Investigator:

Ali Boufelfel
Senior Scientist
(520) 561-5724

Business Contact:

Ibrahim Guven
Vice President
(520) 261-1426
Small Business Information at Submission:

Global Engineering Research and Technologies
2845 E. 2nd Street Tucson, AZ -

EIN/Tax ID: 205427639
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No