by Albert E. Brown, February 9, 1995
1.) relative ease and low cost of material preparation, and,
2.) comparative analysis to physical testing as a function of material loading rate dependence.
In addition, ultrasonic measurement provides clues to determine
grain size and orientation, and provides a relative indication
of material anisotropy with respect to the material geometry.
We usually perform ultrasonic measurements on materials in ambient
atmospheric conditions, and in a relatively free-free condition.
However, we can perform them in other environments, as required.
This paper describes some of our techniques and shows how ultrasonic
velocities are used to establish elastic constants. It also includes
a sample test report for a homogeneous isotropic solid, along
with a list of references.
Table of Symbols
Determining Ultrasonic Velocity
This is an informal report intended primarily for internal or limited external distribution. The opinions and conclusions stated are those of the author and may or may not be those of the Laboratory. Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under Contract W-7405-Eng-48.
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Rolf Diederichs 22.Nov.1995, email@example.com