Low-frequency ultrasonic NDE of an interphase layer Conference Paper uri icon

abstract

  • An ultrasonic technique for a simultaneous measurement of the acoustical properties of a three-layered medium (adherend/interphase layer/adherend) has been developed. Normally incident longitudinal waves are considered. It is assumed that the wavelength may be large compared to all three thicknesses; this allows the use of low-frequency transducers. The inverse problem has been solved for the following two cases: (1) Simultaneous determination of thickness (h) and wavespeed (c) of any one of the three layers, given h and c for the remaining two; and (2) Simultaneous measurement of the three thicknesses, given the three wavespeeds.

author list (cited authors)

  • Kinra, V. K., Zhu, C., Jaminet, P., & Iyer, V.

publication date

  • December 1993