A new technique for ultrasonic-nondestructive evaluation of thin specimens Academic Article uri icon

abstract

  • Combining standard FFT methods with conventional ultrasonics, a method has been developed for measuring the phase velocity, the group velocity and the attenuation in ultrathin specimens (submillimeter or subwavelength in thickness). A detailed description of this technique is given. The technique was used on four disparate materials: aluminum, an epoxy, a particulate composite and a graphite-fiber/epoxy composite. The method works equally well for thin or thick specimens, and for dispersive as well as nondispersive media. © 1988 Society for Experimental Mechanics, Inc.

author list (cited authors)

  • Kinra, V. K., & Dayal, V.

complete list of authors

  • Kinra, VK||Dayal, V

publication date

  • January 1, 1988 11:11 AM