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Experimental study of elastic waves in concrete for NDE in civil engineering

 
: Kohler, B.; Schubert, F.; Algernon, D.; Gardei, A.; Mielentz, F.; Krause, M.

:

Chimenti, D.E.; Thompson, D.O.:
Review of Progress in Quantitative Nondestructive Evaluation. 24B : 25.-30.07.2004, Golden, Colorado
Melville, N.Y.: AIP, 2005 (AIP conference proceedings 760,B)
ISBN: 0-7354-0245-0
pp.1439-1445
Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE) <31, 2004, Golden/Colo.>
English
Conference Paper
Fraunhofer IZFP, Institutsteil Dresden ( IKTS-MD) ()

Abstract
Laser vibrometric contactless sound field measurements it a concrete test block are presented. Both excitation by an ultrasonic probe and by an impactor were used. The wave modes can be identified by their geometric wave forms and propagation velocities. Additionally, numerical simulation of the experimental situation is used to support this interpretation. Possible applications of the presented technique are discussed.

: http://publica.fraunhofer.de/documents/N-198015.html