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Selection of Materials and Sensors for Health Monitoring of Composite Structures

Published online by Cambridge University Press:  01 February 2011

Seth S. Kessler
Affiliation:
Metis Design Corporation, Cambridge, MA, 02141 Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139
S. Mark Spearing
Affiliation:
Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

Embedded structural health monitoring systems are envisioned to be an important component of future transportation systems. One of the key challenges in designing an SHM system is the choice of sensors, and a sensor layout, which can detect unambiguously relevant structural damage. This paper focuses on the relationship between sensors, the materials of which they are made, and their ability to detect structural damage. Sensor selection maps have been produced which plot the capabilities of the full range of available sensor types vs. the key performance metrics (power consumption, resolution, range, sensor size, coverage). This exercise resulted in the identification of piezoceramic Lamb wave transducers as the sensor of choice. Experimental results are presented for the detailed selection of piezoceramic materials to be used as Lamb wave transducers.

Type
Research Article
Copyright
Copyright © Materials Research Society 2004

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References

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