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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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