Phased Array Ultrasonic Inspection of Fastener Holes in Two-Layer Structures

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$749,894.00
Award Year:
2002
Program:
SBIR
Phase:
Phase II
Contract:
F33615-02-C-5217
Award Id:
52385
Agency Tracking Number:
011ML-0087
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
25 Eaton Street, Wakefield, MA, 01880
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
006631191
Principal Investigator:
Vincent Lupien
President
(781) 587-1177
vhlupien@rcn.com
Business Contact:
Vincent Lupien
President
(781) 587-1177
vhlupien@rcn.com
Research Institution:
n/a
Abstract
"Nondestructive inspection is a key component of programs aimed at extending the service life of aging aircraft. One important capability is the detection of cracking and corrosion around fastener holes. In thick, multiple layer structures, there is oftenno solution but removal of the fasteners for inspection, a costly and potentially damaging process. Phased array ultrasonics offer a novel and powerful solution. In Phase I of this project, we have demonstrated the technical feasibility of phased arraysfor inspection without fastener removal through experimental measurements on two-layer specimens and through the design of a prototype. The validity of the design was demonstrated by extensive ray-tracing and ultrasonic field modeling studies. In PhaseII our focus is building and testing the prototype. If we are successful, we anticipate Phase III funding to adapt our device to specific Air Force aircraft, which we intend to accomplish with the help of our large commercial partners."

* information listed above is at the time of submission.

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