Accession Number : AD0464731


Title :   ULTRASONIC WAVE PROPAGATION AND INTERACTION IN SOLID MATERIALS


Descriptive Note : Rept. for 28 Nov 1963-28 Nov 1964


Corporate Author : MIDWEST RESEARCH INST KANSAS CITY MO


Personal Author(s) : Rollins, Jr, F R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/464731.pdf


Report Date : Apr 1965


Pagination or Media Count : 36


Abstract : 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.


Descriptors :   *SOUND TRANSMISSION , *ULTRASONIC RADIATION , *GONIOMETERS , PROPAGATION , NONDESTRUCTIVE TESTING , LIQUIDS , INTENSITY , TRANSDUCERS , LABORATORY EQUIPMENT , ELECTRONIC EQUIPMENT , SOLIDS , WAVE PROPAGATION , MEASURING INSTRUMENTS


Subject Categories : Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE