A visco-hyperelastic model characterizing the electromechanical behavior of nonhomogeneous soft material

A visco-hyperelastic model characterizing the electromechanical behavior of nonhomogeneous soft material
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表征非均质软材料机电行为的粘超弹模型

DOI:
10.1063/1.4990636
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发表时间:
2017-09
期刊:
影响因子:
1.6
通讯作者:
Liang Wenyan
Liang Wenyan
中科院分区:
材料科学4区
文献类型:
--
作者:
Chang Mengzhou;Wang Zhenqing;Liang Wenyan

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本文扩展了连续介质力学中粒子的基本概念,结合高分子链的分布,提出了一个模型。特别地,复杂体系的一般力学行为,包括界面的复杂几何形状和材料缺陷,可以用高分子链的局部分布来描述。此外,从高斯统计导出的高分子链的局域密度已被引入,并与机电行为。当系统处于热力学平衡时,自由表面电荷密度根据外电压和变形而改变。总应力场,其中包括电效应,已出现作为变形和时间历史的函数。最后,该模型拟合文献中的实验数据。
In this work, a model is proposed extending the basic concept of particle of continuum mechanics combining the distribution of polymer chain. Particularly, the general mechanical behavior of complex system, including complex geometry of interface and material defect, can be described by the local distribution of polymer chain. Furthermore, the local density of the polymer chain derived from the Gaussian statistics has been introduced and related to the electromechanical behavior. When the system is in thermodynamic equilibrium, the free surface charge density is modified according to the external voltage and deformation. The total stress field, which includes the electrical effect, has emerged as a function of deformation and time history. Eventually, the model is fitted to experimental data available in the literature.
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