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.
This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes.
This report has been reproduced directly from the best available copy.
Available to DOE and DOE contractors from the Office of Scientific and Technical Information P.O. Box 62, Oak Ridge, TN 37831 Prices available from (615) 576-8401, FTS 626-8401
Available to the public from the National Technical Information Service U.S. Department of Commerce 5285 Port Royal Rd., Springfield, VA 22161
Rolf Diederichs 22.Nov.1995, firstname.lastname@example.org