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Proceedings Paper

Distributed parameter system models for damage detection and location in smart material structures
Author(s): H. Thomas Banks; Yun Wang
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Paper Abstract

Nondestructive damage detection is an important issue in aging civil engineering, aerospace structures, and several other areas. This study presents an attempt to use parameterized partial differential equations and Galerkin approximation techniques to detect and locate damage. Dynamical analysis is carried out using structure bonded piezoceramic patches as both sensors and actuators. Our presentation demonstrates the flexibility and accuracy of this approach. It is mode independent and can sense the presence of damage and locate certain damages to a satisfactory precision. As an example, a beam with a pair of piezoceramic patches bonded to it is used as the test structure; several computational examples with holes of different size, shape, and location in the beam are investigated.

Paper Details

Date Published: 1 May 1994
PDF: 10 pages
Proc. SPIE 2192, Smart Structures and Materials 1994: Mathematics and Control in Smart Structures, (1 May 1994); doi: 10.1117/12.174213
Show Author Affiliations
H. Thomas Banks, North Carolina State Univ. (United States)
Yun Wang, North Carolina State Univ. (United States)

Published in SPIE Proceedings Vol. 2192:
Smart Structures and Materials 1994: Mathematics and Control in Smart Structures
H. Thomas Banks, Editor(s)

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