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Ultrasonic Wave Propagation And Interaction In Solid Materials

Report Number: ML TDR 64-21 Part 2
Author: Rollins, F. R., Jr.
Corporate Author: Midwest Research Institute, Kansas City, MO
Date of Publication: 1965-04
Pages: 35
Contract: AF 33(657)-11006
Project: 7360
Task: 736002
AD Number: AD0464731

Further exploration of ultrasonic beam interactions has been conducted and a review of the state-of-the-art is given. Improvement in the measurement of absolute intensities and an independent evaluation of the third- order elastic constants has permitted a fairly accurate comparison between theoretical predictions of intensity of interaction and experimental results. A four-beam interaction is also shown to be weaker than the previously observed three-beam interaction. A discussion is also directed toward the energy partition that occurs when ultrasonic beams impinge on a liquid-solid boundary. An ultrasonic goniometer is described for partial investigation of this energy partition. Experimental results are given for various metals and layered composites.

Lockheed Martin Missiles & Fire Control
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