Crack Nucleation Prediction through Surface Roughness Measurement

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-08-C-0178
Agency Tracking Number: 07SB2-0052
Amount: $98,902.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: SB072-003
Solicitation Number: 2007.2
Small Business Information
750 Old Hickory Blvd, Building 2, Suite 270, Brentwood, TN, 37027
DUNS: 128193997
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Tryon
 (615) 372-0299
Business Contact
 Loren Nasser
Title: CEO
Phone: (615) 372-0299
Research Institution
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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