Some aspects of large strain actuation in dielectric elastomers Export

@proceedings{citeulike:1321611, abstract = {In the search for artificial muscles, a special contender appears to be standing out. The electric field-actuated dielectric elastomer actuators (DEA) display strains well above 100\%, with actuation stresses in the MPa region. A DEA is best described as a capacitor made entirely of compliant materials: both the dielectric and the electrodes may stretch. When the capacitor is charged, the attraction between the charged electrodes applies a pressure on the dielectric, known as the Maxwell pressure, p = /spl epsiv//spl epsiv//sub o/E/sup 2/.The dielectric constant and the dielectric breakdown strength are both important. Further, because large strains are desirable, the compliance of the electrodes, as well as of the dielectric material, are crucial. Elastomers are an obvious choice for the dielectric material, and they can be made conducting through the use of conducting fillers. Also, since the strains are so large, the theory describing such actuation is highly non-linear. This article intends to review the theory of DEA, with introductions to a nonlinear high-strain model.}, author = {Kofod, G. and Somrner-Larsen, P.}, citeulike-article-id = {1321611}, citeulike-linkout-0 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1612357}, journal = {Electrets, 2005. ISE-12. 2005 12th International Symposium on}, keywords = {eap}, pages = {208--211}, posted-at = {2007-05-23 15:40:52}, priority = {2}, title = {Some aspects of large strain actuation in dielectric elastomers}, url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1612357}, year = {2005} }

TY - CONF ID - citeulike:1321611 L3 - citeulike-article-id:1321611 N2 - In the search for artificial muscles, a special contender appears to be standing out. The electric field-actuated dielectric elastomer actuators (DEA) display strains well above 100%, with actuation stresses in the MPa region. A DEA is best described as a capacitor made entirely of compliant materials: both the dielectric and the electrodes may stretch. When the capacitor is charged, the attraction between the charged electrodes applies a pressure on the dielectric, known as the Maxwell pressure, p = /spl epsiv//spl epsiv//sub o/E/sup 2/.The dielectric constant and the dielectric breakdown strength are both important. Further, because large strains are desirable, the compliance of the electrodes, as well as of the dielectric material, are crucial. Elastomers are an obvious choice for the dielectric material, and they can be made conducting through the use of conducting fillers. Also, since the strains are so large, the theory describing such actuation is highly non-linear. This article intends to review the theory of DEA, with introductions to a nonlinear high-strain model. JF - Electrets, 2005. ISE-12. 2005 12th International Symposium on EP - 211 TI - Some aspects of large strain actuation in dielectric elastomers SP - 208 KW - eap AU - Kofod, G AU - Somrner-Larsen, P PY - 2005/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1612357 ER -