Ultrasonic wave propagation through a layer of spherical inclusions with random of periodic arrangements /
0.25 MHz to 2.25 MHz were used for the tests. The rigid-body
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 0.25 MHz to 2.25 MHz were used for the tests. The rigid-body a resonance due to the periodic dispersion of spheres was also seen. arrangements. Transducer sets having center frequencies of examining ultrasonic wave propagation through a layer of fractions of inclusions with both periodic and random inclusions. A counter-intuitive result observed in this work is that the in-plane packing of the inclusions influences the of the layer. Similar results have been observed both Other resonances were also observed. A higher order out-of-plane resonance. particle resonance was detected in several specimens and particulate composites with a three dimensional dispersion of resonance of the particles was observed. The frequency of spherical lead inclusions embedded in a polyester matrix. theoretically and experimentally by other authors for this resonance was found to be dependent on the area fraction This thesis presents experimental results obtained by Through transmission tests were conducted on several area |
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| Item Description: | "Major subject: Aerospace Engineering". Vita. |
| Physical Description: | xi, 73 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |