Laser Generated Rayleigh and Lamb waves
UNSPECIFIED (2002) Laser Generated Rayleigh and Lamb waves. In: 28th Annual Conference on Quantitative Nondestructive Evaluation, BOWDOIN COLL, BRUNSWICK, ME, JUL 29-AUG 03, 2001. Published in: REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 21A & B, 615 pp. 284-291.Full text not available from this repository.
Laser Generated Rayleigh and Lamb waves are studied in Aluminum samples. Broadband Rayleigh waves are generated using a TEM00 mode Nd:YAG laser. In the thermoelastic regime the Rayleigh wave impulse response from a laser line source is a negative going (inward displacement) delta function. It is shown how aperturing the laser beam produces high thermal gradients resulting in large amplitude broadband Rayleigh waves. The symmetric and antisymmetric Lamb wave modes in thin aluminum plates are also studied and a simple model showing that there is a 50:50% energy split between these two modes is developed.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||Q Science > QC Physics|
|Series Name:||AIP CONFERENCE PROCEEDINGS|
|Journal or Publication Title:||REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 21A & B|
|Publisher:||AMER INST PHYSICS|
|Editor:||Thompson, DO and Chimenti, DE|
|Number of Pages:||8|
|Page Range:||pp. 284-291|
|Title of Event:||28th Annual Conference on Quantitative Nondestructive Evaluation|
|Location of Event:||BOWDOIN COLL, BRUNSWICK, ME|
|Date(s) of Event:||JUL 29-AUG 03, 2001|
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