期刊
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
卷 48, 期 -, 页码 3-15出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.euromechsol.2014.05.012
关键词
Electroactive polymer; Electro-viscoelasticity; Configurational forces
类别
资金
- Swedish Research Council (Vetenskapsradet) [2011-5428]
This work treats theoretical and numerical aspects of configurational forces with application to fracture mechanics of electroactive polymers (EAPs) modelled in the continuum mechanics based context of large strain quasi-incompressible electro-viscoelasticity. We adopt a four-field formulation to take the quasi-incompressible behaviour in a finite element framework into account. We discuss the numerical implementation of viscosity-related evolution equations and the implications of viscous internal variables on the computation of configurational forces. As numerical examples for time depending crack driving forces we discuss a pre-cracked stacked EAP actuator as well as a pre-cracked and pre-stretched block actuator. (C) 2014 Elsevier Masson SAS. All rights reserved.
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