THE FRACTURE BEHAVIOR OF TWO NON-ASYMMETRICAL COLLINEAR CRACKS EMANATING FROM AN ELLIPTICAL HOLE IN A PIEZOELECTRIC MATERIAL
Based on the Stroh-type formalism and the technique of conformal mapping, the problem of two nonsymmetrical collinear cracks emanating from an elliptical hole in a piezoelectric solid is investigated under remotely uniform in-plane electric loading and anti-plane mechanical loading, which allowed us to take the electric field inside the hole and the cracks into account. The analytical solutions of the field intensity factors and the energy release rate are presented in closed-form, which includes the extreme cases for an impermeable crack and a permeable crack. Numerical results are then presented to reveal the effects of geometrical parameters, crack permeability and combined mechanical and electric loadings on the energy release rate.
piezoelectric material elliptical hole semi-permeable crack energy release rate analytic solution
Jun-Hong Guo Zi-Xing Lu
Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics,Beijing, 100191, PR China
国际会议
南京
英文
295-298
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）