Mechano-Chemo-Electrical Finite Element Modelling of the Sensing Behaviour of Ionic Polymer Metal Composites

Mechano-Chemo-Electrical Finite Element Modelling of the Sensing Behaviour of Ionic Polymer Metal Composites
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离子聚合物金属复合材料传感行为的力化学电有限元建模

DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
T. Wallmersperger
T. Wallmersperger
中科院分区：
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文献类型：
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作者：
B. Akle;W. Habchi;T. Wallmersperger

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离子聚合物金属复合材料(IPMC)是一种电活性聚合物(EAP)，在机械变形时会产生电荷。在这项研究中，建立了一个完全耦合的力-化-电有限元模型来预测IPMC的速度传感行为。根据能斯特-普朗克方程和泊松方程对电化学成分进行了模拟。化学-机械耦合是由于传感器变形时离子浓度的变化引起的。为了验证数值模型的有效性，进行了实验研究。计算结果与模型预测值吻合较好。
Ionic polymer metal composite (IPMC) is an electro-active polymer (EAP) that generates electrical charges when it is mechanically deformed. In this study, a fullycoupled mechano-chemo-electrical finite element model is developed to predict the velocity sensing behaviour in IPMC. The electro-chemical component is modelled based on the Nernst-Planck and Poisson’s equations. The chemo-mechanical coupling arises from the change in the concentration of ions upon deforming the sensor. An experimental study is performed to validate the numerical model. The results are shown to be in good agreement with the model predictions.