3. Adhesives and Composites
The most important aspect of measuring the strength of adhesion at an adhesive to metal interface is to understand the chemistry of the interface and to know what makes a good interface. The existence of a strong interface will make the joint less susceptible to fabrication defects that are going to be there no matter how carefully the joint is prepared.
Alers, George A., "Trapped Acoustic Modes for Adhesive Strength Determination" (1977). Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE, July 1975–September 1976. 7.