A novel thickness polarized d(15) shear piezoelectric fiber composites

作者：Yuan, Xi; Chen, Ziqi; Wu, Mingliang; Luo, Hang; Chen, Chao; Zhou, Kechao; Zhang, Dou^*

来源：Sensors and Actuators A: Physical , 2017, 260: 185-190.

DOI：10.1016/j.sna.2017.04.029

• Shear piezoelectric fiber composites
• Thickness-polarized
• Shear strain
• d(15)
• Actuation

As smart materials, piezoelectric ceramics played an important role in actuation, sensing, structural health monitoring and vibration damping systems. This letter reports a novel structure of shear piezoelectric fiber composites (SPFC), which was polarized in the thickness direction, and drived on the transverse direction with interdigitated electrodes. Under a driving condition of 270V at 0.1 Hz, a fixed SPFC showed a shear strain of 176.5 ppm and a Mylar membrane cantilever beam structure exhibited a tip displacement of 0.343 mm, corresponding to an effective piezoelectric constant d15 of 400 pm/V. These results provide a novel idea for the SPFC applied in actuation and vibration control areas.

• 出版日期2017-6-15
• 单位粉末冶金国家重点实验室; 中南大学