Adhesive Bond Integrity of Composites

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$172,262.00
Award Year:
1997
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
32728
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Adler Consultants, Inc.
2715 Charing Road, Columbus, OH, 43221
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Laszlo Adler
(614) 292-1974
Business Contact:
() -
Research Institution:
n/a
Abstract
Adhesive joining of materials has found widespread use in industry because of the simplicity and versatility of the process. However, adhesive applications in critical structural joints are still limited by the absence of reliable, rapid industrial NDE methods. Significant progress has been achieved recently in several research laboratories in quantitative NDE of adhesive joint integrity of metals. The most advanced ultrasonic techniques of adhesive joints utilize spectral analysis at oblique incidence. We propose to demonstrate the possibility of oblique ultrasonic spectroscopy for adhesive bond integrity evaluation of composites. The major differences from the evaluation of the metal joints are the laminated structure of the composites and the anisotropy of the laminates. Theoretical modeling will be performed to optimize the measurement technique, followed by ultrasonic and mechanical tests. Thus the correlation between ultrasonic signature and joint strength will be established.

* information listed above is at the time of submission.

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