Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Category Material Name Contact Information EAP Category Response Time (sec) Configuration Applications Uses Operation at various temperatures, humidity and pressure conditions Power Requirements Fracture Toughness Maximum Bending Curvature (1/mm.V) Maximum Strain (%) Maximum Pressure or Stress (MPa) Tensile elastic (or Young’s) Modulus Specific Elastic Energy Density (J/g) Elastic Energy Density (J/cm^3) Electrically Induced Force [g], or Charge (C) {stress} Stress/strain curve {stiffness graph} Damping Maximum Efficiency % Electrical Response Power Created Life Cycle Permanent Deformation Coefficient of thermal expansion [ppm/C] Dielectric breakdown strength [V] Impedance spectra [ohms and phase angle] Nonlinear Current [A] Dielectric Constant (relative permittivity) Density Thickness (electrode & EAP) Availability Relative Cost Information Acrylic Dielectric Elastomer SRI International, www.sri.com/crad.html Dielectric elastomer microsecond range Block Actuator, speaker Artificial muscle, loudspeaker (tweeter) -10 to 70 °C, humidity not a problem, pressure cau ses a lowered expansion rate 10-150 v/micrometer resilient, elastic n/a 380, 800 for elongation 7.2 n/a 3.4 3.4 .18 at 20 Hz 82 at 80 Hz Applied voltage will compress the electrodes; this pressure, p = e(r) * e(o) * E^2 = e(r) * e(o) * (V/t)^2; where e(r) =permittivity of free space, e(o) relative permittivity (dielectric constant) of the polymer; E is the applied electric field; v is the applied voltage, and t is the film thickness. for large strain deformations, electrical energy generated per unit volume of material, e, is e = e(r) * e(o) * E^2 = e(r) * e(o) * (V/t)^2; where e(r) =permittivity of free space, e(o) relative permittivity (dielectric constant) of the polymer; E is the applied electric field; v is the applied voltage, and t is the film thickness. 10 million+ cycles, actuator; 130,000 generator none n/a n/a n/a n/a n/a 1.5 G/cc n/a Commercially Produced, AMI Technologies low Controllability Additional Information high This information was taken from the following references. None of it was actual data, and some data needed to be extrapolated from known data. Large improvements have been made since the publication of this data, but that is unavailable at this moment. References (If appropriate) R. Kornbluh, R. Pelrine, Q. Pei, and S.V. Shastri, "Application of Dielectric Elastomer EAP Actuators," in "Electroactive Polymer (EAP) Actuators as Artificial Muscles," ed. Y. BarCohen, Ch 16, pp. 457-495, SPIE Press, Bellingham, Washington, 2001. R. Korbluh, R. Pelrine, Q. Pei, R. Heydt, S. Stanford, S. Oh, and J. Eckerle, "Electroelastomers: Applications of Dielectric Elastomer Transducers for Actuation, Generation and Smart Structures." SRI International, Menlo Park, California, 2001. Y. Bar-Cohen, "EAP History, Current Status, and Infrastructure" in "Electroactive Polymer (EAP) Actuators as Artificial Muscles," Ed. Y. Bar-Cohen, Ch 1, pp. 3-12, SPIE Press, Bellingham, Washington, 2001. Y. Bar-Cohen, S. Sherrit, S. Lih, "Characterization of the Electromechanical Properties of EAP materials." Proceedings of EAPAD, SPIE Press, Bellingham, Washington, 2001.