Fluid Interaction of Segmented Ionic Polymer-Metal Composites Under Water

Document Type

Article

Publication Date

2007

Publication Title

Smart Materials and Structures

Volume

16

Issue

2

First page number:

S220

Last page number:

S226

Abstract

The numerous possible applications of ionic polymer–metal composites (IPMCs) as an underwater propulsor have led to the investigation of IPMC behaviour in an aqueous environment. This study compares the performance of an IPMC subjected to fluid drag forces to its performance without such forces. Both the form (i.e. pressure) drag and the viscous (i.e. skin friction) drag forces experienced by the IPMC due to the surrounding liquid are modelled. These forces are incorporated into a two-dimensional (2D) analytical model of a segmented IPMC. The model is based on small deflection and can be conveniently used. The maximum IPMC deflection for aqueous and non-aqueous environments is compared, both analytically and experimentally. Using video-capturing techniques, the deflection of the IPMC, both in air and in water, is investigated. The experimental results are used in order to better understand the performance of an IPMC in water. A large-deflection model for the segmented IPMC is also proposed.

Keywords

Drag (Aerodynamics); Metal-filled plastics; Underwater propulsion

Disciplines

Aerodynamics and Fluid Mechanics | Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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