Arrival times of scattered ultrasonic signals from a solid inclusion in an elastic solid
作者:
Deborah J. Rhodes,
Wolfgang Sachse,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1977)
卷期:
Volume 61,
issue S1
页码: 16-16
ISSN:0001-4966
年代: 1977
DOI:10.1121/1.2015454
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Measurements are reported of the arrival times of broadband ultrasonic pulses scattered by a circular, cylindrical, solid inclusion imbedded in a matrix whose longitudinal wave speed is lower than that of the cylinder. The wavenumber‐inclusion radius product,ka, ranged from approximately 1 to 15. The matrix materials were water, acrylic, and brass and the inclusion materials were copper, quartz, stainless steel, and tungsten. A strong, scattered pulse, corresponding to a circumferential wave on the cylinder is observed forcs>cl, wherecsis the shear wave speed of the inclusion material andclis the longitudinal wave speed of the matrix material. These observations are in agreement with published results. The experiments also show that the pulse corresponding to the circumferential wave is not observed forcs
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