Extension limit, polarization saturation, and snap-through instability of dielectric elastomers

A dielectric elastomer is capable of large voltage-induced deformation, particularly when the voltage is applied on the verge of snap-through instability. A model is described which shows that the snap-through instability is markedly affected by both the extension limit of polymer chains and the polarization saturation of dipoles. The model may guide the search for high-performance dielectric elastomer transducers.

[1]  Katia Bertoldi,et al.  Instabilities in multilayered soft dielectrics , 2011 .

[2]  Bai-Xiang Xu,et al.  On electromechanical stability analysis of dielectric elastomer actuators , 2010 .

[3]  A. Gent.  A New Constitutive Relation for Rubber , 1996 .

[4]  S. Michel,et al.  A comparison between silicone and acrylic elastomers as dielectric materials in electroactive polymer actuators , 2009 .

[5]  Andrew N. Norris,et al.  Comment on “Method to analyze electromechanical stability of dielectric elastomers” [Appl. Phys. Lett.91, 061921 (2007)] , 2007, 0709.2497.

[6]  Jinsong Leng,et al.  Comment on “Method to analyze electromechanical stability of dielectric elastomers”[Appl. Phys. Lett. 91, 061921 (2007)] , 2008 .

[7]  W. G. Chadband.  Electrical Degradation and Breakdown in Polymers , 1992 .

[8]  Zhigang Suo,et al.  Cracking in ceramic actuators caused by electrostriction , 1994 .

[9]  Iain A. Anderson,et al.  An integrated, self-priming dielectric elastomer generator , 2010 .

[10]  C. Keplinger,et al.  Röntgen’s electrode-free elastomer actuators without electromechanical pull-in instability , 2010, Proceedings of the National Academy of Sciences.

[11]  W. Hong,et al.  Modeling Viscoelastic Dielectrics , 2011 .

[12]  Z. Suo.  Theory of dielectric elastomers , 2010 .

[13]  Yanju Liu,et al.  Electromechanical stability of dielectric elastomer , 2009 .

[14]  Zhigang Suo,et al.  Dielectric elastomers of interpenetrating networks , 2009 .

[15]  Tushar K. Ghosh,et al.  Electroactive Nanostructured Polymers as Tunable Actuators , 2007 .

[16]  Miss A.O. Penney.  (b) , 1974, The New Yale Book of Quotations.

[17]  Mary Frecker,et al.  Electro-elastomers: Large deformation analysis of silicone membranes , 2007 .

[18]  S. Dubowsky,et al.  Large-scale failure modes of dielectric elastomer actuators , 2006 .

[19]  Q. Pei,et al.  Advances in dielectric elastomers for actuators and artificial muscles. , 2010, Macromolecular rapid communications.

[20]  Zhang,et al.  Giant electrostriction and relaxor ferroelectric behavior in electron-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer , 1998, Science.

[21]  R. Ogden,et al.  Nonlinear electroelastostatics: Incremental equations and stability , 2010 .

[22]  Evaristo Riande,et al.  On electromechanical stability of dielectric elastomers , 2008 .

[23]  R. A. Pethrick,et al.  Electrical degradation and breakdown in polymers , 1993 .

[24]  Edoardo Mazza,et al.  Electromechanical coupling in dielectric elastomer actuators , 2007 .

[25]  Z. Suo,et al.  Theory of dielectric elastomers capable of giant deformation of actuation. , 2010, Physical review letters.

[26]  Zhigang Suo,et al.  NONEQUILIBRIUM THERMODYNAMICS OF DIELECTRIC ELASTOMERS , 2011 .

[27]  Guggi Kofod,et al.  Electrical failure in blends of chemically identical, soft thermoplastic elastomers with different elastic stiffness , 2010 .

[28]  R. McMeeking,et al.  Electrostatic Forces and Stored Energy for Deformable Dielectric Materials , 2005 .

[29]  Z. Suo,et al.  Method to analyze electromechanical stability of dielectric elastomers , 2007 .

[30]  Ron Pelrine,et al.  Interpenetrating Polymer Networks for High‐Performance Electroelastomer Artificial Muscles , 2006 .

[31]  Q. Pei,et al.  High-speed electrically actuated elastomers with strain greater than 100% , 2000, Science.

[32]  Zhigang Suo,et al.  Electromechanical hysteresis and coexistent states in dielectric elastomers , 2007 .

[33]  R. Pelrine,et al.  Actuation Response of Polyacrylate Dielectric Elastomers , 2003 .

[34]  Evaristo Riande,et al.  Response to Comment on “On electromechanical stability of dielectric elastomers” [Appl. Phys. Lett.94, 096101 (2009)] , 2009 .

[35]  K. Stark,et al.  Electric Strength of Irradiated Polythene , 1955, Nature.