Title :
Influences of poling direction and boundary conditions on cracks in 2D piezoelectric media
Author :
Fan, Cui-ying ; Zhao, Ming-hao
Author_Institution :
Sch. of Mech. Eng., Zhengzhou Univ., Zhengzhou, China
Abstract :
A finite crack is studied in two-dimensional (2D) infinite piezoelectric medium with arbitrary electric poling direction in the present paper. A self-consistent method is employed to obtain the real crack opening and the electric field in the crack cavity under combined mechanical-electric loadings. The influences of poling direction and electric boundary conditions on fracture behaviors are investigated, where the electric boundary conditions include permeable crack and impermeable crack. Numerical results of the influence of the poling directions, the boundary conditions and electric field on the local J-integral are presented.
Keywords :
SCF calculations; cracks; fracture; piezoelectric materials; arbitrary electric poling direction; crack cavity; electric boundary conditions; finite crack; fracture properties; impermeable crack; local J-integral; mechanical-electric loadings; permeable crack; self-consistent method; two-dimensional infinite piezoelectric medium; Boundary conditions; Cavity resonators; Electric fields; Equations; Loading; Media; Stress; J-integral; Piezoelectric medium; boundary condition; crack; poling directions;
Conference_Titel :
Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2010 Symposium on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-9822-2
Electronic_ISBN :
978-1-4244-9821-5
DOI :
10.1109/SPAWDA.2010.5744360
