کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
497775 862944 2016 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrostatic–viscoelastic finite element model of dielectric actuators
ترجمه فارسی عنوان
الکترواستاتیک مدل عنصری محدود از چسب استاکتوالاستیک از اعمال دی الکتریک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی

The aim of this work is to set up a numerical framework to characterise the deformation process and effective forces when voltage is applied to dielectric elastomer actuators. Based on an existing model for non-linear electro-elasticity that covers the static case only, inertia terms are included in order to obtain a description of the deformation process depending on time. A potential energy function that is composed of Neo-Hooke material behaviour, electric field energy and coupling terms covers the material properties. Combined with the kinetic energy, a Lagrange function forms the basis in a variational setting of the model. Viscoelastic effects are included using non-conservative forces and account for time dependent strains. The action is approximated using quadrature rules and discretising with finite elements in space. A discrete version of Hamilton’s principle leads to a structure preserving integration scheme for DEAs. The integration scheme is implemented as C++ code and applied to various examples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 299, 1 February 2016, Pages 421–439
نویسندگان
, ,