NOTE: This item is not available outside the Texas A&M University network. Texas A&M affiliated users who are off campus can access the item through NetID and password authentication or by using TAMU VPN. Non-affiliated individuals should request a copy through their local library's interlibrary loan service.
The characterization of Lamb and Rayleigh waves in plates with ramp-like changes in thickness
| dc.creator | Uzzell, Christopher Tinsley | |
| dc.date.accessioned | 2012-06-07T22:38:57Z | |
| dc.date.available | 2012-06-07T22:38:57Z | |
| dc.date.created | 1994 | |
| dc.date.issued | 1994 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1994-THESIS-U99 | |
| 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 | The research described in this thesis uses broadband laser generation and detection techniques to investigate acoustic wave propagation in wedge type structures. The interrogating waves were generated by a Q-switched ND:YAG laser. Fizeau based interferometry, accomplished with a constant wavelength (CW) Argon laser, was used to detect the waveforms. The experimental study was designed to examine the propagation of thermoelastically generated Lamb and Rayleigh waves in plates with ramp-like changes in thickness. The structures to be studied consist of six thin (I mm) copper plates which ramp up into a thicker section (12.86 mm). The angles of these ramps range from 150 to 90' at 15' intervals. Relationships were found between wave characteristics and the geometric aspects of the plate. Changes in frequency spectra and phase of the interrogating wave were used to identify parameters essential to the non-destructive evaluation of these specimens. | 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 | mechanical engineering. | en |
| dc.subject | Major mechanical engineering. | en |
| dc.title | The characterization of Lamb and Rayleigh waves in plates with ramp-like changes in thickness | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | mechanical 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 |
Files in this item
This item appears in the following Collection(s)
-
Digitized Theses and Dissertations (1922–2004)
Texas A&M University Theses and Dissertations (1922–2004)
Request Open Access
This item and its contents are restricted. If this is your thesis or dissertation, you can make it open-access. This will allow all visitors to view the contents of the thesis.