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Proceedings Paper

Conducting polymer electromechanics: a continuum model of passive mechanical properties
Author(s): A. Della Santa; Alberto Mazzoldi; C. Tonci; P. Chiarelli; Danilo De Rossi
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Paper Abstract

Several porous material systems (e.g.. hydrogels, conducting polymers, electrorheologic fluids) make possible a control of their properties in response to an appropriate stimulus (and viceversa) and therefore. they belong to the class of intelligent materials. In the present paper we propose a first classification of intelligent porous systems dividing them in three main classes: porous material as semi-permeable media, as reservoir and delivery systems and as biphasic composites with large interfacial area between solid and fluid phases. Then we present a continuos model to describe the passive mechanical behaviour of a generic porous conducting polymer saturated by a fluid. The model is solved for a stress-relaxation test and it is verified in the specific case of a doped polypyrrole porous matrix saturated by an electrolytic solution. The goodness of fit between experimental date and theoretical data confirms the validity of the model.

Paper Details

Date Published: 26 April 1996
PDF: 6 pages
Proc. SPIE 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials, (26 April 1996); doi: 10.1117/12.237144
Show Author Affiliations
A. Della Santa, Univ. di Pisa (Italy)
Alberto Mazzoldi, Univ. di Pisa (Italy)
C. Tonci, Univ. di Pisa (Italy)
P. Chiarelli, CNR Institute of Clinical Institute Physiology (Italy)
Danilo De Rossi, Univ. di Pisa (Italy)


Published in SPIE Proceedings Vol. 2779:
3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials
Pierre Francois Gobin; Jacques Tatibouet, Editor(s)

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