Constitutive relation and electromechanical stability of compressible dielectric elastomer
文献类型：会议论文
| 作者 | Liu, Liwu1; Liang, Xiangfeng2; Yang, Kai1; Wu, Chunxia1; Liu, Zhongyu1; Sun, Shouhua1; Liu, Yanju1; Leng, Jinsong3 |
| 出版日期 | 1905-07-03 |
| 关键词 | Electroactive polymer actuators - Free energy - Plastics - Elastomers - Stability - Strain energy |
| 卷号 | 7976 |
| DOI | 10.1117/12.880314 |
| 英文摘要 | The constitutive relation and electromechanical stability of Varga-Blatz-Ko-type compressible isotropic dielectric elastomer is investigated in this paper. Free-energy in any form, which consists of elastic strain energy and electric energy, can be applied to analyse the electromechanical stability of dielectric elastomer. The constitutive relation and stability is analyzed by applying a new kind of free energy model, which couples elastic strain energy, composed of Varga model as the volume conservative energy and Blatz-Ko model as the volume non-conservative energy, and electric field energy with constant permittivity. The ratio between principal planar stretches m(t0) (位2 = m(t0)位1), the ratio between thickness direction stretch and length direction stretch n(t0) (位3 = n(t0)位1), and power exponent of the stretchk(t0) are defined to characterize the mechanical loading process and compressible behavior of dielectric elastomer. Along with the increase of material parameters m(t0), n(t 0), k(t0) and poison ratio v, the nominal electric field peak is higher. This indicates that the dielectric elastomer electromechanical system is more stable. Inversely, with the increase of the material parameter 伪, the nominal electric field peak, critical area strain and the critical thickness strain increase, coupling system is more stable. 漏 2011 SPIE. |
| 资助机构 | SPIE |
| 学科主题 | Electric Fields |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59543]  |
| 作者单位 | 1.Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), No. 92 West dazhi Street, Harbin, 150001, China 2.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China 3.Centre for Composite Materials, Science Park of Harbin Institute of Technology (HIT), No. 2 YiKuang Street, Harbin, 150001, China |
| 推荐引用方式 GB/T 7714 | Liu, Liwu,Liang, Xiangfeng,Yang, Kai,et al. Constitutive relation and electromechanical stability of compressible dielectric elastomer[C]. 见:. |
入库方式： OAI收割
来源：过程工程研究所
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