Fracture toughness of multiferroic composite materials

摘要：

Fracture toughness of unidirectional ferromagnetic fiber reinforced ferroelectric matrix composite was studied based on the energy approach in a view of large scale. A half space edge crack with crack face perpendicular to the external fields was considered. The energy release rate was derived explicitly considering the rnagnetoelectric coupling under combined mechanical, electric and magnetic loading. Because of the magnetoelectric coupling through the interface, the fracture toughness is highly dependent on the polarization properties of the ferroelectric and ferromagnetic portions besides the volume fraction and the elastic properties of each composite.

关键词： fiber reinforced materials multiferroic energy release rate

作者: Hulan Liu Xiaoyan Lu Biao Wang

作者单位: The State Key Lab of Optoelectronic Materials and Technologies,School of Physics and Engineering.Sun Department of Applied Mechanics,Harbin Institute of Technology.Harbin,China The State Key Lab of Optoelectronic Materials and Technologies,School of Physics and Engineering.Sun

会议类型: 国际会议

会议名称: The Eighth International Conference on Fundamentals of Fracture(ICFF VIII)(第八届断裂基础国际会议)

会议地点: 香港·广州

会议语种:英文

页码: 4973-4977

在线出版日期: 2008-01-03（万方平台首次上网日期，不代表论文的发表时间）