NDLI: Study on fracture behavior of ferroelectric ceramics under combined electromechanical loading by using a moiré interferometry technique

Content Provider	Springer Nature Link
Author	Daining, Fang Zhanwei, Liu Huimin, Xie Shang, Li Fulong, Dai Qida, Bing
Copyright Year	2004
Abstract	This paper discusses an in situ observation of fracture behavior around a crack tip in ferroelectric ceramics under combined electromechanical loading by use of a moiré interferometry technique. The deformation field induced by the electric field and the stress concentration near the crack tip in three-points bending experiments was measured. By analysis of the moiré images it is found that under a constant mechanical load, the electric field almost has no effect on the crack extension in the case that the directions of the poling, electric field and crack extension are perpendicular to each other. When the poling direction is parallel to the crack extension direction and perpendicular to the electric field, the strain decreases faster than that calculated by FEM with and without electrical loading as one goes away from the crack tip. In addition, as the electric field intensity increases, the strain near the crack tip increases, and the strain concentration becomes more significant.
Starting Page	263
Ending Page	269
Page Count	7
File Format	PDF
ISSN	05677718
Journal	Acta Mechanica Sinica
Volume Number	20
Issue Number	3
e-ISSN	16143116
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ferroelectric ceramics moiré interferometry strain concentration crack fracture Mechanics, Fluids, Thermodynamics Numerical and Computational Methods in Engineering Theoretical and Applied Mechanics Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Computational Mechanics

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