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Ultrasonic wave propagation through a layer of spherical inclusions with random of periodic arrangements
| dc.creator | Day, Nathan Allan | |
| dc.date.accessioned | 2012-06-07T22:36:02Z | |
| dc.date.available | 2012-06-07T22:36:02Z | |
| dc.date.created | 1994 | |
| dc.date.issued | 1994 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1994-THESIS-D273 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references. | en |
| dc.description.abstract | This thesis presents experimental results obtained by examining ultrasonic wave propagation through a layer of spherical lead inclusions embedded in a polyester matrix. Through transmission tests were conducted on several area fractions of inclusions with both periodic and random arrangements. Transducer sets having center frequencies of 0.25 MHz to 2.25 MHz were used for the tests. The rigid-body resonance of the particles was observed. The frequency of this resonance was found to be dependent on the area fraction of the layer. Similar results have been observed both theoretically and experimentally by other authors for particulate composites with a three dimensional dispersion of inclusions. A counter-intuitive result observed in this work is that the in-plane packing of the inclusions influences the out-of-plane resonance. Other resonances were also observed. A higher order particle resonance was detected in several specimens and a resonance due to the periodic dispersion of spheres was also seen. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | aerospace engineering. | en |
| dc.subject | Major aerospace engineering. | en |
| dc.title | Ultrasonic wave propagation through a layer of spherical inclusions with random of periodic arrangements | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | aerospace engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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