A micromechanical model for analyzing responses of a piezoelectric hybrid composite

Chien-hong Lin, A. Muliana

研究成果: Conference contribution

摘要

This study presents a micromechanics model for analyzing the effective nonlinear responses of a polarized piezoelectric hybrid composite subjected to large electric fields and small strain deformations. The studied hybrid piezocomposite is constructed by unidirectional piezoelectric fibers embedded in a polymeric matrix, which is reinforced by fillers of piezoelectric particles. The fillers are often used to enhance both mechanical and electrical properties of the polymeric matrix. The high electric field inputs result in strong nonlinear responses of piezoelectric materials, which are often the cases in actuator applications. The micromechanical model is derived based on a fiber-unit-cell model consisting of fiber and matrix subcells. The matrix subcells are comprised of particle-unit-cell models. The polymeric matrix is modeled as linear viscoelastic while the piezoelectric constituents are modeled with the nonlinear electro-mechanical coupling response. The simulation results show that the piezoelectric fillers can significantly enhance the transverse responses of the hybrid piezocomposite, which is useful for applications of 3-1 operating mode.

原文English
主出版物標題28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
頁面843-851
頁數9
出版狀態Published - 2013 十二月 1
事件28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013 - State College, PA, United States
持續時間: 2013 九月 92013 九月 11

出版系列

名字28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
1

Other

Other28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
國家/地區United States
城市State College, PA
期間13-09-0913-09-11

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料

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