Quantitative Non-Destructive Evaluation of Composite Materials Based on Ultrasonic Wave Propagation. Semiannual Progress Report March 15, 1986-September 14, 1986.

摘要

The application and interpretation of specific ultrasonic nondestructive evaluation techniques are studied. The Kramers-Kronig or generalized dispersion relationships are applied to nondestructive techniques. Progress was made on an improved determination of material properties of composites inferred from elastic constant measurements.