13. New Technology Applications
Ultrasonic standards for artillery shells are made by machining grooves into inert projectile bodies. Current standards are difficult to design and build and do not realisticly simulate manufacturing defects. This poster paper will discuss the design process and use of ultrasonic standards and will describe some of their current limitations.
Smith, J. M., "Strong Need for Improved Ultrasonic Standards for Inspection of Artillery Shell Metal Bodies" (1980). Proceedings of the DARPA/AFML Review of Progress in Quantitative NDE, July 1978–September 1979. 85.