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Proceedings Paper

Design of self-growing, self-sensing, and self-repairing materials for engineering applications
Author(s): Carolyn M. Dry
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Paper Abstract

Like natural biological building systems these materials are inexpensive, and self-form through interaction of the materials. They sense and self-repair, respond to changes in the environment. The volume and scale, cost and end use are all considered from the start. The purpose of the particular system we will describe is an engineered bridge. The materials form as bone does from the innate attributes of the material without much labor. They sense the environment, respond to it, and repair any damage. This composite bridge is designed from a self-forming polymer and concrete system. Internal release of chemicals, their properties and location account for responsiveness to change and for repair. The choice of matrix additives also allow for the responsiveness. Bridge frames were fabricated for dynamic testing. The results showed that self repair and response to loads could be accomplished by careful placement of chemicals for later release and by use of chemicals which could alter such attributes as stiffness, flexure and permanent deformation. Internal viewing sensors could determine the state of the frames after testing.

Paper Details

Date Published: 6 April 2001
PDF: 7 pages
Proc. SPIE 4234, Smart Materials, (6 April 2001); doi: 10.1117/12.424430
Show Author Affiliations
Carolyn M. Dry, Univ. of Illinois/Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 4234:
Smart Materials
Alan R. Wilson; Hiroshi Asanuma, Editor(s)

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