3. Adhesives and Composites
The program to be described here was initiated during the past year at the Air Force Materials Laboratory. The problem of deterMining adhesive bond strength was undertaken with a rather bruteforce approach of simply collecting the best possible data, utilizing existing ultrasonic plane-wave theory for layed structures to calculate ultrasonic spectra, and then attempting the inversion of the d~ta to obtain the acoustic properties of the materlal or structure. An empirical correlation of these acoustic properties with the destructively measured bond strength is planned.
Buckley, Michael J. and Raney, J. M., "The Use of Continuous Wave Ultrasonic Spectroscopy for Adhesive-Bond Evaluation" (1977). Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE, July 1975–September 1976. 5.