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Proceedings Paper

Macro-fiber composite (MFC) as a delamination sensor in antisymmetric laminates
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Paper Abstract

The change in extension-twist coupling due to delamination in antisymmetric laminates is experimentally measured. Experimental results are compared with the results from analytical expression existing in literature and finite element analysis. The application of the Macro-Fiber Composite (MFC) developed at the NASA Langley Research Center for sensing the delamination in the laminates is investigated. While many applications have been reported in the literature using the MFC as an actuator, here its use as a twist sensor has been studied. The real-life application envisaged is structural health monitoring of laminated composite flexbeams taking advantage of the symmetry in the structure. Apart from the defect detection under symmetric conditions, other methods of health monitoring for the same structure are reported for further validation. Results show that MFC works well as a sensor.

Paper Details

Date Published: 8 January 2007
PDF: 11 pages
Proc. SPIE 6414, Smart Structures, Devices, and Systems III, 641414 (8 January 2007); doi: 10.1117/12.695245
Show Author Affiliations
S. Hari Krishna, Vikram Sarabhai Space Ctr. (India)
Dineshkumar Harursampath, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 6414:
Smart Structures, Devices, and Systems III
Said F. Al-Sarawi, Editor(s)

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