Betz, D. and Thursby, G.J. and Culshaw, B. and Staszewski, W. (2006) Structural damage identification using multifunctional bragg grating sensors part I : theory and implementation. Smart Materials and Structures, 15 (5). pp. 1305-1312. ISSN 0964-1726Full text not available in this repository. (Request a copy from the Strathclyde author)
Structural health monitoring has become a respected and established discipline in engineering. Health monitoring involves the development of autonomous systems for continuous monitoring, inspection and damage detection of structures with minimum involvement of labour. The ultimate goal of structural health monitoring is to increase reliability, improve safety, enable light-weight design and reduce maintenance costs for all kinds of structures. The identification of structural damage is therefore a key issue in structural health monitoring. The scope of this paper is to present the results of testing a system for the identification of structural damage based on fibre Bragg grating sensors. The basic idea is to use fibre Bragg gratings as acoustic receivers of ultrasonic Lamb waves. The layout of such a damage identification system is introduced and its theoretical limits are studied numerically and experimentally. The set-up for damage identification experiments is described and the results of initial experiments introducing damage detection based on the analysis of Lamb wave signals are presented. The results for the Bragg grating sensors are then compared to the results of established technology for Lamb wave detection using piezoceramic transducers.
|Keywords:||structural health monitoring, autonomous systems, continuous monitoring, damage detection, safety, fibre Bragg grating sensors, ultrasonic Lamb waves, piezoceramic transducers, Electrical engineering. Electronics Nuclear engineering, Signal Processing, Mechanics of Materials, Civil and Structural Engineering, Materials Science(all), Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Condensed Matter Physics|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||04 Nov 2011 12:20|
|Last modified:||25 Nov 2016 03:11|