TY - GEN
T1 - Boundary integrate equation method for semi-permeable vertical planar cracks in 3D piezoelectric media
AU - Fan, Cui Ying
AU - Guo, Zheng Hua
AU - Zhao, Ming Hao
AU - Zhang, Rong Li
AU - Pan, Ernian
PY - 2011
Y1 - 2011
N2 - In this paper, the boundary integral equation method is developed to study a vertical planar crack under the electrically semi-permeable boundary condition. The crack face is parallel to the poling direction and normal to the plane of isotropy in three-dimensional (3D) transversely isotropic piezoelectric media. The result shows that the singularity order is still the ordinary r -1/2 at the crack tip. The mode I stress intensity factor is related only to the displacement discontinuity or the mechanical loading in the normal direction of the crack plane, whilst the other field intensity factors are coupled together by other extended displacement discontinuities. When the crack is extended infinitely in the y-direction, the problem is reduced to a two-dimensional (2D) one, and the corresponding coupling behavior is simplified.
AB - In this paper, the boundary integral equation method is developed to study a vertical planar crack under the electrically semi-permeable boundary condition. The crack face is parallel to the poling direction and normal to the plane of isotropy in three-dimensional (3D) transversely isotropic piezoelectric media. The result shows that the singularity order is still the ordinary r -1/2 at the crack tip. The mode I stress intensity factor is related only to the displacement discontinuity or the mechanical loading in the normal direction of the crack plane, whilst the other field intensity factors are coupled together by other extended displacement discontinuities. When the crack is extended infinitely in the y-direction, the problem is reduced to a two-dimensional (2D) one, and the corresponding coupling behavior is simplified.
KW - Boundary integrate equation method
KW - Field intensity factor
KW - Piezoelectric medium
KW - Vertical crack
UR - http://www.scopus.com/inward/record.url?scp=84862856312&partnerID=8YFLogxK
U2 - 10.1109/SPAWDA.2011.6167260
DO - 10.1109/SPAWDA.2011.6167260
M3 - Conference contribution
AN - SCOPUS:84862856312
SN - 9781467310789
T3 - Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011
SP - 344
EP - 348
BT - Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011
T2 - 2011 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2011
Y2 - 9 December 2011 through 11 December 2011
ER -