首页|Analysis of fracture parameters for partially electrically conducting and partially insulated crack in a homogeneous piezoelectric material
Analysis of fracture parameters for partially electrically conducting and partially insulated crack in a homogeneous piezoelectric material
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Elsevier
A plane strain problem for a partially electrically conducting and partially insulated crack in a homogeneous piezoelectric material is considered. The electrically conducting zone is located either on both crack faces or on one of them. Remote mechanical tensile stresses orthogonal to the crack and the electric field orthogonal or parallel to the crack are applied. The appearance of contact zones between the crack faces is supposed. The computational model is based on the finite element method. Determination of the energy release rates at the crack tips is realized using the virtual crack closure technique. The results of solving a number of test problems are presented. They demonstrate the satisfactory accuracy of the model. The impact on the fracture parameters of such factors as the length and location of conducting zone, the direction of the electric field, and the poling direction of the piezoelectric material is analyzed.
Piezoelectric materialPartially electrically conducting and partiallyinsulated crackFinite element methodFracture parametersVirtual crack closure technique
Victor Adlucky、Volodymyr Loboda、Yuri Lapusta
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Department of Theoretical and Computational Mechanics, Oles Honchar Dnipro National University, Nauky Av., 72, Dnipro 49010, Ukraine
NETL
NSTL
Elsevier
