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Proceedings Paper

A model on the thermomechanical behavior of smart polymers considering evolution of natural configurations
Author(s): Qiang Zhang; Qing-Sheng Yang; Guang-Hui Shi
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Paper Abstract

Thermal-response amorphous polymer is a typical soft active material where the glass transition occurs as temperature changes. In the process of glass transition, the amorphous polymer will go through the transitions between the glassy state and the rubber state. Furthermore, as subjected to a combining load of the mechanics and temperature, the materials will experience deformation and glass transition simultaneously and exhibit some peculiar macroscopic response. To describe this behavior, we consider the evolution of natural configurations as the main mechanism for such thermo-mechanical behavior, and develop a thermo-mechanical constitutive model of polymer under mechanical and thermal loads. As application the proposed model, we investigate the uniaxial thermo-mechanical behavior of the soft active polymers. It is shown that the model is effective for describing the coupling behavior of material evolution with large deformations in the glass transition region.

Paper Details

Date Published: 2 April 2012
PDF: 10 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 840904 (2 April 2012); doi: 10.1117/12.923857
Show Author Affiliations
Qiang Zhang, Beijing Univ. of Technology (China)
Qing-Sheng Yang, Beijing Univ. of Technology (China)
Guang-Hui Shi, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

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