TITLE

The use of invariants in ultrasonic testing

AUTHOR(S)
Kline, Ronald A.; Rasmussen, Maurice L.
PUB. DATE
May 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 509 Issue 1, p1509
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Invariants, mathematical quantities which are independent of coordinate system, are extensively used in solid mechanics. However, they are rarely applied to practical problems. In this work, we show that the sum of the three orthogonally polarized acoustic velocities in any direction in a cubic crystal is an invariant. This observation can be used either as a check to insure the internal consistency of acoustic measurements in these materials or to reduce the number of measurements required. An application of this approach to the simultaneous determination of thickness and orientation in cubic single crystals is presented. © 2000 American Institute of Physics.
ACCESSION #
6029227

 

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