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Multiscale Modeling and Theoretical Design of Dielectric Elastomers
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Multiscale Modeling and Theoretical Design of Dielectric Elastomers. |
| 개인저자 | Grasinger, Matthew . |
| 단체저자명 | Carnegie Mellon University. Civil and Environmental Engineering. |
| 발행사항 | [S.l.]: Carnegie Mellon University., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 160 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-04B. Dissertation Abstract International |
| ISBN | 9781392869499 |
| 학위논문주기 | Thesis (Ph.D.)--Carnegie Mellon University, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Advisor: Dayal, Kaushik. |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | Dielectric elastomers (DEs) are a promising material for use in robotic, biomedical, energy, aerospace and automotive technologies. However, currently available DEs are limited by weak electromechanical coupling and our general understanding of DEs could improve. In this work, a multiscale model of dielectric elastomers is developed. At the molecular scale, an electrostatic response of a single DE monomer is assumed and, using statistical mechanics, the thermodynamics of an DE chain is investigated. This chain scale model leads to an important insight: the role of electrostatic torque on polymer chains in the electromechanical coupling of dielectric elastomers. This chain torque occurs because there is a connection between a chain's end-to-end vector and its polarization. At the continuum-scale, this macromolecular phenomenon manifests itself in the form of a deformation dependent susceptibility. Not only are novel modes of electromechanical coupling discovered, but also lessons learned from (standard) isotropic dielectric elastomers are then used to guide an in-depth analysis of the implications of designing and manufacturing anisotropic dielectric elastomers. The work in theoretical design reveals how the deformation and usable work derived from (anisotropic) dielectric elastomer actuators may be increased by as much as 75-100% relative to standard, isotropic dielectric elastomers. |
| 일반주제명 | Mechanics. Statistical physics. Electromagnetics. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
