Journal Published Online: 01 March 1990
Volume 12, Issue 1

Correlations Between Ultrasonic Waveforms and Artificially Implanted Defects in Composite Materials

CODEN: JCTRER

Abstract

This paper presents the results of ultrasonic testing, in particular pulse-echo scans and full waveform scans, performed on composite test specimens. Defects, such as backing paper, excess resin, Teflon®, sand, acetone, and Frekote® spray are implanted artificially in samples manufactured from carbon fiber prepregs. Cracks and delaminations are generated by impact and bending tests. The specimens are scanned in order to find correlations between these defects and their displayed images. Finally, the cut specimens are analyzed under the microscope.

Author Information

Schuster, J
Rheinisch-Westfälische-Technische-Hochschule, West Germany
Steiner, KV
Center for Composite Materials, University of Delaware, Newark, DE
Pages: 6
Price: $25.00
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Stock #: CTR10177J
ISSN: 0884-6804
DOI: 10.1520/CTR10177J