Dear experts and academissions; I study on lamb waves for using on aging aircraft. if anybody know about on this subject any article or url address please inform me
01:32 Nov-28-1999 Rolf Diederichs Director, Editor, Publisher, Internet, PHP MySQL NDT.net, Germany, Joined Nov 1998 602
Re: Lamb waves : Dear experts and academissions; : I study on lamb waves for using on aging aircraft. : if anybody know about on this subject any article or url address : please inform me -----------------
A search via NDTnet or the NDTnet Virtual Library should cover almost all Internet resources. The NDT Search Form provides the selectable Keyword "lamb wave", however if you use the Virtual Library Search or any other Internet Search Engines you shall use also the synonym "guided wave" or "guided waves".
Re: Lamb waves : Dear experts and academissions; : I study on lamb waves for using on aging aircraft. : if anybody know about on this subject any article or url address : please inform me
You may be interested in the following paper: G. A. Gordon and T. D. Mast, "Wide-Area Imaging of Ultrasonic Lamb Wave Fields by Electronic Speckle Pattern Interferometry," Proc. SPIE Nondestructive Techniques for Aging Aircraft, Airports, and Aerospace Hardware III, 3586, pp. 297-309, 1999. The paper has a large reference section that may also be helpful. In the near future, the paper should be able at the fllowing URL: http://www.arl.psu.edu/publications/publications.html Cheers.
07:50 Nov-29-1999 Rolf Diederichs Director, Editor, Publisher, Internet, PHP MySQL NDT.net, Germany, Joined Nov 1998 602
Re: Lamb waves Thanks to Grant Gordon's information I could find the abstract of his publication through the NDTnet Library Search. During the last month we have added 26 SPIE proceedings with more than thousands of abstracts to the crawler range.
Wide-area imaging of ultrasonic Lamb wave fields by electronic speckle pattern interferometry, pp.297-309
Author(s): Grant A. Gordon, The Pennsylvania State Univ., State College, PA, USA; Truman D. Mast, The Pennsylvania State Univ., State College, PA, USA.
Abstract: Ultrasonic elastic waves have traditionally been examined using single point measurement techniques. In this paper, we present a technique capable of recording out-of-plane ultrasonic displacement data over wide areas. The method employs 2D surface vibration data collected via electronic speckle pattern interferometry used in combination with laser modulation and optical phase stepping. Using this rapid, wide-area measurement method, images of ultrasonic Lamb waves onideal and flawed plate structures are presented. For a single ultrasonic excitation frequency, multiple data records are collected as an externally excited traveling plate wave moves through the sample. When an optical phase shift is introduced between the data records, the data can be processed to yield quantitative displacement fields. The resulting processed images demonstrate evidence of Lamb wave reflection, transmission and scattering. Following the full field data collection, a novel inverse scattering algorithm was applied to reconstruct images of the scattering sources responsible for the measured displacement field data. The results of these investigations will be presented and discussed in the context of detecting hidden flaws in aging aircraft. : : Dear experts and academissions; : : I study on lamb waves for using on aging aircraft. : : if anybody know about on this subject any article or url address : : please inform me
: You may be interested in the following paper: : G. A. Gordon and T. D. Mast, "Wide-Area Imaging of : Ultrasonic Lamb Wave Fields by Electronic Speckle : Pattern Interferometry," Proc. SPIE Nondestructive : Techniques for Aging Aircraft, Airports, and Aerospace : Hardware III, 3586, pp. 297-309, 1999. : The paper has a large reference section that may also be helpful. : In the near future, the paper should be able at the fllowing URL: : http://www.arl.psu.edu/publications/publications.html : Cheers.
Re: Lamb waves dear gordon; Thank you for your interesting. I cant reach your article from internet. Especially ý interested in sensivity of guided waves for detection of fatigue cracks. if you have any opinion,please inform me. Also what kind of probes can be usable. best regards
07:59 Nov-30-1999 Dave Lines R & D, Diagnostic Sonar Ltd, United Kingdom, Joined Nov 1998 8
Re: Lamb waves : Dear experts and academissions; : I study on lamb waves for using on aging aircraft. : if anybody know about on this subject any article or url address : please inform me
You may also be interested in the online proceedings of the 3rd Joint FAA/DoD/NASA Conference on Aging Aircraft held 20-23 Sep 99 in Albuquerque, New Mexico.
These can be found on http://www.galaxyscientific.com/agingaircraft/home.htm.
There were a couple of papers relating to Lamb waves, e.g. "Ultrasonic Technique for Hidden Corrosion Detection in Aircraft Wing Skin" by A. Chahbaz, J. Gauthier, M. Brassard, Tektrend International, Quebec, Canada, D.R. Hay, TISEC Inc. (see session 6C) but you may find more of interest.
09:32 Nov-30-1999 Rolf Diederichs Director, Editor, Publisher, Internet, PHP MySQL NDT.net, Germany, Joined Nov 1998 602
Re: Lamb waves That's really a great source Dave Lines pointed out. You can find about 15 NDT full-text articles, however as PDF downloads. We'll add these articles to the crawler range, so that it will be included into the Internet full-text search of the NDTnet Library.
Rolf
-------------------- : : Dear experts and academissions; : : I study on lamb waves for using on aging aircraft. : : if anybody know about on this subject any article or url address : : please inform me
: You may also be interested in the online proceedings of the 3rd Joint FAA/DoD/NASA Conference on Aging Aircraft held 20-23 Sep 99 in Albuquerque, New Mexico.
: These can be found on http://www.galaxyscientific.com/agingaircraft/home.htm.
: There were a couple of papers relating to Lamb waves, e.g. "Ultrasonic Technique for Hidden Corrosion Detection in Aircraft Wing Skin" by A. Chahbaz, J. Gauthier, M. Brassard, Tektrend International, Quebec, Canada, D.R. Hay, TISEC Inc. (see session 6C) but you may find more of interest.
00:49 Dec-01-1999 Rolf Diederichs Director, Editor, Publisher, Internet, PHP MySQL NDT.net, Germany, Joined Nov 1998 602
Re: Lamb waves : dear gordon; : Thank you for your interesting. I cant reach your article from internet. : Especially ý interested in sensivity of guided waves for detection of fatigue cracks. if you have any opinion,please inform me. Also what kind of probes can be usable. : best regards -----------------
There are still not ALL papers available via the Internet! But at SPIE you can order online a paper for $15.00 (non-members).
Try this link directly to the order of the paper. http://bookstore.spie.org/cgi-bin/order.acgi?bc=1999SPIE%2e3586%2e%2e297G&ti=Wide-area%20imaging%20of%20ultrasonic%20Lamb%20wave%20fields%20by%20electronic%20speckle%20pattern%20interferometry&t=a&of=1
Re: Lamb waves I did my Ph D. diseertation on the use of Lamb waves to mesure the elasticity constants of thin plates. If you intertested in a copy let me know. The reserach as was done at the Univeristy of Texas at el Paso in 1998. See a paper at http://www.ndt.net/abstract/asntf97/004.htm
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NDTnet Search Results: Lamb Wave
