Measurement of the Nine Elastic Moduli of Rolled Plate From One Surface

Ultrasonic nondestructive evaluation (NDE) techniques for characterizing material properties in manufactured products are becoming valuable tools for detecting anomalies early in the manufacturing process. In particular, a system for on-line characterization of the microstructure in rolled sheet metal is already available for predicting formability parameters [1]. Other key mechanical properties that are very sensitive to the microstructure such as yield strength and hardness are currently being measured off-line using slow and expensive destructive tests. As on-line techniques become available, it will become possible to detect sub-standard properties before large quantities of low grade material were produced