ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This paper introduces a new sensor design based on a carbon nanotube structural neuronfor structural health monitoring applications. The carbon nanotube neuron is a thin and narrowpolymer film sensor that is bonded or deposited onto a structure. The electrochemical impedance(resistance and capacitance) of the neuron changes due to deterioration of the structure where theneuron is located. A network of the long carbon nanotube neurons can form a structural neuralsystem to provide large area coverage and an assurance of the operational health of a structurewithout the need for actuators and complex wave propagation analyses that are used with otherSHM methods. The neural system can also reduce the cost of health monitoring by usingbiomimetic signal processing to minimize the number of channels of data acquisition needed todetect damage. The carbon nanotube neuron is lightweight and easily applied to the structuralsurface, and there is no stress concentration, no piezoelectrics, no amplifier, and no storage of highfrequency waveforms. The carbon nanotube neuron is expected to find applications in detectingdamage and corrosion in large complex structures including composite and metallic aircraft androtorcraft, bridges, and almost any type of structure with almost no penalty to the structure
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.321-323.140.pdf
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