Share Email Print
cover

Proceedings Paper

Behavior of thin lightweight structures under propagating waves
Author(s): Eric A. Petersen; Katherine A Barnes; Umesh A. Korde
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this study, we examine the propagation of mechanical waves on thin lightweight structures, with the aim of developing a method of crack detection in such structures. By comparing the response of healthy and cracked samples, we are sometimes able to differentiate between the two. Using a network of sensors it would be possible to determine the presence of a crack on a structure that is remote. Experimental work has been performed with single-crystal Silicon thin plates and a thin rectangular sheet of steel. The Silicon plates were tested healthy and cracked, and the steel was only tested when healthy. Piezo-ceramic stacks were used to provide actuation and sensing, and wave solutions to the equation of motion are obtained for the Silicon plate. Calculated and experimental results agree reasonably well.

Paper Details

Date Published: 18 April 2008
PDF: 8 pages
Proc. SPIE 6928, Active and Passive Smart Structures and Integrated Systems 2008, 692826 (18 April 2008); doi: 10.1117/12.771251
Show Author Affiliations
Eric A. Petersen, Univ. of Nebraska, Lincoln (United States)
Katherine A Barnes, South Dakota School of Mines and Technology (United States)
Umesh A. Korde, South Dakota School of Mines and Technology (United States)


Published in SPIE Proceedings Vol. 6928:
Active and Passive Smart Structures and Integrated Systems 2008
Mehdi Ahmadian, Editor(s)

© SPIE. Terms of Use
Back to Top