Feasibility study of microfabrication by coextrusion (MFCX) hollow fibers for active composites

Bryan J. Cannon; Diann E. Brei

doi:10.1117/12.388238

14 June 2000 Feasibility study of microfabrication by coextrusion (MFCX) hollow fibers for active composites

Bryan J. Cannon, Diann E. Brei

Proceedings Volume 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics; (2000) https://doi.org/10.1117/12.388238
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

Active long-fiber composites based on a hollow fiber topology have advantages over solid fiber composites in that they require lower voltages for activation and are not limited to electrically non-conductive matrix materials. One critical issue for hollow fiber composites is the fiber aspect ratio. To investigate this at the individual fiber level, analytical and finite element models which include electric field variations, were developed to determine the 'effective d₃₁' of a hollow fiber. By using the effective fiber properties in this way, it was possible to derive a single-row lamina strain/electric field model form classical composite theory. The models were validated with a series of deflection/voltage experiments conducted utilizing hollow fibers fabricated y microfabrication by coextrusion (MFCX) techniques. To determine the feasibility of MFCX hollow fiber composites, the models and experimental results were employed to study the effect of the fiber aspect ratio on a variety of fiber/composite design issues: fiber/lamina performance, fiber strength, matrix material, and electric field effects.

Citation Download Citation

Bryan J. Cannon and Diann E. Brei "Feasibility study of microfabrication by coextrusion (MFCX) hollow fibers for active composites", Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); https://doi.org/10.1117/12.388238

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