Accession Number:

ADD020301

Title:

An Inverse Method to Calculate Material Properties Using a Non-Resonant Technique

Descriptive Note:

Patent application, Filed 2 Jul 2006

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2006-07-02

Pagination or Media Count:

31.0

Abstract:

A method for calculating material properties of a material includes determining a dilatational wavespeed and a shear wave speed. The dilatational wavespeed is determined by conducting vertical vibration tests of two specimens of the material, one specimen being twice as thick as the other. Transfer functions are obtained from these tests and used to calculate the dilatational wavespeed. The shear wavespeed is determined by conducting horizontal vibration tests of two specimens with one specimen being twice as thick as the other. The shear wavespeed can be calculated from transfer functions obtained from these tests and the dilatational wavespeed. Other material properties can be calculated from the dilatational and shear wavespeeds. Frequency dependence of the properties can be determined by conducting the tests at different frequencies.

Subject Categories:

  • Acoustics
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE