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| Electromechanical modeling for ionic polymer metal composite based on thermodynamics and pure bending theories |
| AN Yi; XIONG Ke; GU Na |
| College of Aerospace Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 |
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Cite this article:
AN Yi XIONG Ke GU Na. Electromechanical modeling for ionic polymer metal composite based on thermodynamics and pure bending theories. Chin J Mater Res, 2009, 23(4): 387-394.
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Abstract As a novel kind of sensor and actuator materials, Ionic Polymer Metal Composite (IPMC) has been used in more and more engineering applications fields. And it is urgent to properly model IPMC considering electromechanical relationship to describe its properties. In this paper, an electromechanical model based on nonreversible thermodynamics and pure bending theories was proposed to describe and predict the electrical/mechanical performance of IPMC. The compact description was exhibited by the linear regime with two driving forces (electric field E and pressure gradient ∇p). The model was developed to account for the coupling of ion transport, electric field and elastic deformation to predict the response of the IPMC. The pure bending theory was used to approximately describe the stress characteristic of IPMC. The electromechanical model can explain the actuation and sensing effect of IPMC. The experiment results showed that the model can predict the IPMC responses under DC excitation with the error are within.
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Received: 23 December 2008
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| Fund: Supported by the National Natural Science Foundation of China No.90605003. |
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