Crack Nucleation Prediction through Surface Roughness Measurement

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$98,902.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
W31P4Q-08-C-0178
Agency Tracking Number:
07SB2-0052
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
VEXTEC CORP.
750 Old Hickory Blvd, Building 2, Suite 270, Brentwood, TN, 37027
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
128193997
Principal Investigator:
Robert Tryon
CTO
(615) 372-0299
Rtryon@vextec.com
Business Contact:
Loren Nasser
CEO
(615) 372-0299
Lnasser@vextec.com
Research Institution:
n/a
Abstract
Our commercial and military fleets operate safely but at a great cost. Downtime for structural inspections, elaborate sustainment equipment, long maintainer hours, expensive in-depot repair, continuous spectrum monitoring, and extensive component testing have effectively reduced the rates of structure-related accidents, but the costs are overwhelming. DARPA has proposed changing the paradigm of aircraft structural management by creating a new methodology to inspect, diagnose, prognosticate, and manage airframe life. VEXTEC proposes a unique approach to this challenging problem in utilizing pre-existing, non-contact sensor technology for surface roughness measurement coupled with our novel physics-based microstructural crack-modeling simulation tools, materials expertise, and metals-application knowledge base. The means and processes presented here - meant to implement a consolidated prognostics technology that uses structural surface profilometry, materials models, and early crack-progression simulation - will allow for the diagnostics and prognostics of small damage.

* information listed above is at the time of submission.

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