Accession Number : AD0707286

Title :   DETERMINATION OF MICROSCALE ROUGHNESS OF CYLINDRICAL SURFACES USING ULTRASONIC CREEPING WAVES,

Corporate Author : HOUSTON UNIV TEX WAVE PROPAGATION LABS

Personal Author(s) : Hayre,H. S. ; Vroulis,G.

Report Date : 1969

Pagination or Media Count : 5

Abstract : The circumferential waves or creeping waves propagate in both media separated by a rough interface in an alternating fashion, and are reviewed from a theoretical point of view; the associated velocity of propagation dependence on the interface surface roughness is shown to be reasonably valid for microscale roughness determination. Experimental results are also included to support theory, and certain empirical relationships are derived as an example of the application of the technique. (Author)

Descriptors :   (*NONDESTRUCTIVE TESTING, ULTRASONIC RADIATION), (*SURFACE ROUGHNESS, NONDESTRUCTIVE TESTING), CYLINDRICAL BODIES, DETERMINATION

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE