%0 Journal Article
%T Two-surface model of macroscopic electro-mechanical behavior for ferroelectrics under unaxial loading<br>铁电陶瓷宏观单轴力电行为的双面模型
%A Zhou Zhidong Zhao Shexu Kuang Zhenbang
%A <br>周志东
%A 赵社戌
%A 匡震邦
%J 力学学报
%D 2004
%I 
%X Ferroelectric ceramics are widely used as new smart materials due to their strong coupling between electric and mechanical fields. Our aim is to present a macroscopic constitutive model for ferroelectric ceramics based on Two-Surface theory of Plasticity, According to the microscopic evolvements of domains in ferroelecrics under electric and mechanical loadings, a switching surface of material is introduced, and a saturated surface of material is proposed firstly. The general distance between the switching surface and the saturated surface is regarded as the internal variable, which expresses the non-linear behavior of ferroelectric ceramics. The predicted hysteresis and butterfly loops by this model are in good agreement with the form of loops observed experimentally.
%K ferroelectrics
%K two-surface constitutive model
%K electro-mechanical coupling
%K swithching<br>铁电陶瓷
%K 双面本构模型
%K 力电耦合
%K 畴变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=57A8F5DD9C549651&yid=D0E58B75BFD8E51C&vid=933658645952ED9F&iid=B31275AF3241DB2D&sid=2A22E972FD97071B&eid=D02611D1F8166C9A&journal_id=0459-1879&journal_name=力学学报&referenced_num=0&reference_num=17