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Coupled Transport/Hyperelastic Model for Nastic Materials

机译:鼻材料的耦合运输/超弹性模型

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Nastic materials are high energy density active materials that mimic processes used in the plant kingdom to produce large deformations through the conversion of chemical energy. These materials utilize the controlled transport of charge and fluid across a selectively-permeable membrane to achieve bulk deformation in a process referred to in the plant kingdom as nastic movements. The nastic material being developed consists of synthetic membranes containing biological ion pumps, ion channels, and ion exchangers surrounding fluid-filled cavities embedded within a polymer matrix. In this paper the formulation of a biological transport model and its coupling with a hyperelastic finite element model of the polymer matrix is discussed. The transport model includes contributions from ion pumps, ion exchangers, and solvent flux. This work will form the basis for a feedback loop in material synthesis efforts. The goal of these studies is to determine the relative importance of the various parameters associated with both the polymer matrix and the biological transport components.
机译:鼻用材料是高能量密度的活性材料,可模仿植物界通过化学能转化产生大变形的过程。这些材料利用电荷和流体在选择性渗透膜上的受控传输,以在植物界称为鼻动的过程中实现整体变形。正在开发的鼻腔材料由合成膜组成,该合成膜包含生物离子泵,离子通道和围绕嵌入聚合物基质中的充液腔的离子交换剂。在本文中,讨论了生物传输模型的制定及其与聚合物基质的超弹性有限元模型的耦合。传输模型包括离子泵,离子交换器和溶剂通量的贡献。这项工作将构成材料合成工作中反馈回路的基础。这些研究的目的是确定与聚合物基质和生物转运组分相关的各种参数的相对重要性。

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