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Proceedings Paper

Design, manufacture and evaluation of bending behaviour of composite beams embedded with SMA wires
Author(s): Gang Zhou
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Paper Abstract

Smart adaptive beams with 16-ply quasi-isotropic composite host and 10 nitinol wires prestrained to 5.5% were made in an autoclave with a purpose-made alignment device. The wires were eccentrically embedded in the axial direction. Beams of the same condition were duplicated and beams of different lengths were also made. The bending actuation of these adaptive beams was experimentally evaluated in a cantilever set-up by applying electric current to the nitinol wires. The evaluation showed that the present fabrication process was repeatable and reliable. For carbon/epoxy host, the maximum induced deflection was about 2 mm. This level of the end deflections could be due to limited load transfer associated with both high flexural rigidity of the host and semi-conductive carbon fibres. For E-glass/epoxy host, the maximum induced deflection was about 8 mm.

Paper Details

Date Published: 27 November 2007
PDF: 8 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642335 (27 November 2007); doi: 10.1117/12.780051
Show Author Affiliations
Gang Zhou, Loughborough Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering

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