A model on the thermomechanical behavior of smart polymers considering evolution of natural configurations

Qiang Zhang; Qing-Sheng Yang; Guang-Hui Shi

doi:10.1117/12.923857

2 April 2012 A model on the thermomechanical behavior of smart polymers considering evolution of natural configurations

Qiang Zhang, Qing-Sheng Yang, Guang-Hui Shi

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 840904 (2012) https://doi.org/10.1117/12.923857
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

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.

Citation Download Citation

Qiang Zhang, Qing-Sheng Yang, and Guang-Hui Shi "A model on the thermomechanical behavior of smart polymers considering evolution of natural configurations", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 840904 (2 April 2012); https://doi.org/10.1117/12.923857

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