Low frequency directional acoustic microscope for nondestructive evaluation

Manohar Bashyam; Joseph L. Rose

doi:10.1109/ULTSYM.1991.234092

Low frequency directional acoustic microscope for nondestructive evaluation

Manohar Bashyam, Joseph L. Rose

Engineering Science and Mechanics

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The main thrust of this work was to develop a technique for measuring the anisotropic properties of materials. A low frequency (5MHz) technique was developed using a single transducer similar to the one used in acoustic microscopy, to measure anisotropic properties of ceramic matrix composite (CMC) materials. Experiments were conducted to verify that the velocity of the SAW is a function of the fiber orientation and fiber content of unidirectional CMC. Several important anomalies were imaged and compared to the results obtained from destructive analysis.

Original language	English (US)
Article number	234092
Pages (from-to)	741-744
Number of pages	4
Journal	Proceedings - IEEE Ultrasonics Symposium
DOIs	https://doi.org/10.1109/ULTSYM.1991.234092
State	Published - Jan 1 1991
Event	1991 IEEE Ultrasonics Symposium. ULTSYM 1991 - Orlando, United States Duration: Dec 8 1991 → Dec 11 1991

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

Access to Document

10.1109/ULTSYM.1991.234092

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abstract = "The main thrust of this work was to develop a technique for measuring the anisotropic properties of materials. A low frequency (5MHz) technique was developed using a single transducer similar to the one used in acoustic microscopy, to measure anisotropic properties of ceramic matrix composite (CMC) materials. Experiments were conducted to verify that the velocity of the SAW is a function of the fiber orientation and fiber content of unidirectional CMC. Several important anomalies were imaged and compared to the results obtained from destructive analysis.",

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year = "1991",

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AB - The main thrust of this work was to develop a technique for measuring the anisotropic properties of materials. A low frequency (5MHz) technique was developed using a single transducer similar to the one used in acoustic microscopy, to measure anisotropic properties of ceramic matrix composite (CMC) materials. Experiments were conducted to verify that the velocity of the SAW is a function of the fiber orientation and fiber content of unidirectional CMC. Several important anomalies were imaged and compared to the results obtained from destructive analysis.

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