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Advanced Field-Use Instrument for Nondestructive Fatigue Damage Assesment and…

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
1998 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Advanced Technologies/Laboratories Intl
Advanced Technologies/Lab Intl 20010 Century Blvd, Ste 500 Germantown, MD 20874 0111
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Woman-Owned: Yes
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 1998
Title: Advanced Field-Use Instrument for Nondestructive Fatigue Damage Assesment and Remaining Service Life Prediction for Aging Aerospace Systems
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $100,000.00


During Phase I, we will develop the technology for a field use instrument to determine the residual stress, fatigue damage and remaining service life for aging metal structures. The technology will be based on a state-of -the-art wide-angle x-ray detector recently developed at ATMI. The life span estimation will use the measured micro-defect density to compare to a paramedic life span map based on the alloy composition, residual stress and loading conditions. The map will be based on the structural change of diffraction peaks form multiple individual grains during the course of fatigue life. We will demonstrate the feasibility of rapid fatigue damage determination for representative materials by testing representative samples of the three most common crystal cell structures for engineering metals, making the technology applicable for steels, aluminum, nickel and titanium alloys The samples will undergo high circle teensy/compression, bending and corosion loading. Validation of the life span map will be accomplished by interrupting high cycle fatigue tests, predicting remaining life, and subsequently cycling the sample to failure. Successful completion of the Phase I effort will culminate in the production of a field use instrument to be built and delivered at the completion of the Phase II program.

Principal Investigator:

Paul Moran

Business Contact:

Small Business Information at Submission:

Advanced Technology
3006 Research Drive State College, PA 16801

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No