Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2006.05a
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- Pages.397-398
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- 2006
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- 2005-8446(pISSN)
The Effect of Variable Electric Fields on the PZT Characteristic and Laminate Configuration in LIPCA
LIPCA에 공급되는 전기장의 변화가 PZT 특성과 적층배향에 미치는 영향
- Kim Cheol-Woong (Mech. Eng., U&I Research Center, Korea Univ.) ;
- Nam In-Chang (Graduate School, Aerospace Eng., Konkuk Univ.) ;
- Yoon Kwang-Joon (Aerospace Eng., Konkuk Univ.)
- Published : 2006.05.01
Abstract
The advanced piezoelectric ceramic composite actuator, which is called LIPCA with the FRP and the optimization of the laminate configuration, was performed to maximize the stress transfer and the fiber bridging effect. This study evaluated the effect of variable electric fields on the PZT characteristic, laminate configuration and fatigue characteristics under the resonance frequency, which meant the largest performance range and the changes of its interlaminar phase were also evaluated by stages. In conclusions, Comparing with the fatigue lift of intact LIPCA, the fatigue life of LIPCA embedded by the artificial delamination was decreased up to 50%. The micro void growth and the coalescence of epoxy were actively made at the interlaminar phase subject to the large tensile stress.
Keywords