Optimum Design of a Novel Magnetoelectric Composite Structure

作     者：Y. X. Liu, J. M. Liu, J. G. Wan, C. W. Nan Department of Civil Engineering, Logistical Engineering University, Chongqing, 400041, China Laboratory of Solid state Microstructure, Nanjing University, Nanjing, 210093, China Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China 

会议名称：《The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics》

会议日期：2004年

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

摘      要：Magnetoelectric (ME) effect is a cross two -field effect, characterized by appearanc e of an electric polarization upon applying a magnetic field or with the change of magnetization on applying an electric field. As a potential magnetic field probe and transducer for magneto -electric conversion among many other applications, the ME effect has been attracting attention since its discovery half-century ago. Besides the ferroelectromagnets as the long -time objects of the related researches, ME-composite materials represent the systems where strong ME effect is expected based on the idea of product property of composite materials. Along this line, quite a number of ME composite materials were fabricated in order to reach the optimized ME effect. The great difference between the experimental data and theoretical prediction reminds us of the neces sity of real-scale modeling of the ME effect in those ME composite materials. One may argue that the mechanical coupling between the two components is highly structure -sensitive, whiles an experimental search for such a resonance is tedious and costive. On the other hand, a numerical modeling of the ME effect is definitely suggestive for pre-design and optimization of novel ME composite materials and structures of potential giant ME property.