Abstract
A smart system for monitoring the structural integrity of pressure vessels throughout service life might consist of a limited number of piezoelectric transducers permanently bonded to the vessel, together with a system for intelligent real-time data processing. In the present work it is shown that the growth of subcritical cracks can be detected using the modal properties of a vibrating cylindrical tube. Finite element analysis and experimental measurements are in agreement in showing that the growth of cracks in a variety of locations can be detected using various strategies based on modal analysis. One strategy corresponds closely with a whole- field method of detection in that measurements made at a single point are capable of revealing crack growth in a number of different locations in the cylinder.
Original language | English |
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Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
Editors | Inderjit Chopra |
Pages | 311-319 |
Number of pages | 9 |
Volume | 2717 |
Publication status | Published - 1 Jan 1996 |
Event | Smart Structures and Materials 1996: Smart Structures and Integrated Systems - San Diego, CA, USA Duration: 26 Feb 1996 → 29 Feb 1996 |
Conference
Conference | Smart Structures and Materials 1996: Smart Structures and Integrated Systems |
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City | San Diego, CA, USA |
Period | 26/02/96 → 29/02/96 |