SHEAROGRAPHY FOR NON-DESTRUCTIVE BOND EVALUATION FOR SUBMARINE HULL COATINGS

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$50,000.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
18250
Agency Tracking Number:
18250
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
3130 Quail Ridge Circle, Rochester, MI, 48309
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Judy C Hung
(313) 370-2238
Business Contact:
() -
Research Institute:
n/a
Abstract
This proposal aims to develop and adapt a novel optical technique called digital shearography for non-destructive bond evaluation of submarine hull coatings. Shearography is somewhat analogous to a large number of strain gages as it permits full-field measurement of strain distribution. It detects flaws in materials by-detecting flaw-induced strain anomolies. Being full-field, non-contacting, and not requiring installing strain gages, the technique appears to have the potential for development into a practical technique for nondestructive evaluation of large objects such as submarine. Despite being a young technique, shearography has already been accepted by the rubber industry for nondestructive evaluation of tires, and by the aerospace industry for nondestructive evaluation composite materials. The proposed investigation aims to prove the feasibility of extending shearography to inspecting rubber to metal bonds. The immediate goal is to accomplish the above objective, and the ultimate is to develop shearography into a fully automated and user-friendly tool for nondestructive evaluation in field/production environments.

* information listed above is at the time of submission.

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