TY - JOUR
T1 - Large-strain, high-stress tubular dielectric elastomer actuator with high pre-stretch and oil encapsulation
AU - Lau, Gih Keong
AU - Tan, Desmond Di Teng
AU - La, Thanh Giang
N1 - Publisher Copyright:
© 2015 SPIE.
PY - 2015
Y1 - 2015
N2 - Rolled dielectric elastomer actuators (DEA), which are prepared by rolling up a flat dielectric elastomer, are subjected to non-homogenous deformation and thus does not perform as well as the flat ones. Typically, the rolled ones reported actuation of not more than 37.3% axial strain; whereas the flat one undergoing pure-shear deformation reported much greater actuation. This study shows that oil encapsulation helps the rolled DEA suppress pre-mature breakdown. Under isotonic test, oil-encapsulated tubular DEAs sustain very high electric field of up to 712.0 MV/m, which is 50% higher than that of the dry DEAs. Hence, it can produce up to 50% axial strain while deforming the passive oil capsules. In addition, it produces an isometric stress up to nearly 0.6 MPa, 114% higher than that of the dry one.
AB - Rolled dielectric elastomer actuators (DEA), which are prepared by rolling up a flat dielectric elastomer, are subjected to non-homogenous deformation and thus does not perform as well as the flat ones. Typically, the rolled ones reported actuation of not more than 37.3% axial strain; whereas the flat one undergoing pure-shear deformation reported much greater actuation. This study shows that oil encapsulation helps the rolled DEA suppress pre-mature breakdown. Under isotonic test, oil-encapsulated tubular DEAs sustain very high electric field of up to 712.0 MV/m, which is 50% higher than that of the dry DEAs. Hence, it can produce up to 50% axial strain while deforming the passive oil capsules. In addition, it produces an isometric stress up to nearly 0.6 MPa, 114% higher than that of the dry one.
KW - Dielectric elastomer actuator
KW - electric breakdown
KW - non-homogenous deformation
KW - oil encapsulation
UR - http://www.scopus.com/inward/record.url?scp=84937239313&partnerID=8YFLogxK
U2 - 10.1117/12.2084531
DO - 10.1117/12.2084531
M3 - Conference article
AN - SCOPUS:84937239313
SN - 0277-786X
VL - 9430
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
IS - January
M1 - 94300M
T2 - Electroactive Polymer Actuators and Devices (EAPAD) 2015
Y2 - 9 March 2015 through 12 March 2015
ER -