TY - JOUR
T1 - Applicability of the crack face electrical boundary conditions in piezoelectric mechanics
AU - Wang, Baolin
AU - Han, Jiecai
AU - Du, Shanyi
PY - 2004
Y1 - 2004
N2 - The electrical boundary conditions on the crack faces and their applicability in piezoelectric materials are discussed. A slit crack and a notch of finite thickness in piezoelectric materials subjected to combined mechanical and electrical loads is considered. Here, a crack is defined as a notch without thickness, which is filled with air or vacuum. The crack or notch is perpendicular to the poling direction of the medium. The ideal crack face electrical boundary conditions, i.e., the electrically permeable crack and the electrically impermeable crack, are investigated first. Then dependence of the field intensity factors on notch thickness at the notch tips is analyzed to obtain a closed-form. The results are compared with the ideal crack solutions. Some useful results are found.
AB - The electrical boundary conditions on the crack faces and their applicability in piezoelectric materials are discussed. A slit crack and a notch of finite thickness in piezoelectric materials subjected to combined mechanical and electrical loads is considered. Here, a crack is defined as a notch without thickness, which is filled with air or vacuum. The crack or notch is perpendicular to the poling direction of the medium. The ideal crack face electrical boundary conditions, i.e., the electrically permeable crack and the electrically impermeable crack, are investigated first. Then dependence of the field intensity factors on notch thickness at the notch tips is analyzed to obtain a closed-form. The results are compared with the ideal crack solutions. Some useful results are found.
KW - cracks
KW - fracture mechanics
KW - piezoelectric materials
UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:46923
U2 - 10.1007/s10338-004-0435-6
DO - 10.1007/s10338-004-0435-6
M3 - Article
SN - 0894-9166
VL - 17
SP - 290
EP - 296
JO - Acta Mechanica Solida Sinica
JF - Acta Mechanica Solida Sinica
IS - 4
ER -