Analysis of bonded anisotropic wedges with interface crack under anti-plane shear loading

作者：Ghadiri M^*; Shahani A R

来源：Applied Mathematics and Mechanics (English Edition ), 2014, 35(5): 637-654.

DOI：10.1007/s10483-014-1818-6

• antiplane stress analysis
• anisotropic elastic wedge
• stress intensity factor (SIF)
• displacement-displacement boundary conditions
• singular integral equation

The antiplane stress analysis of two anisotropic finite wedges with arbitrary radii and apex angles that are bonded together along a common edge is investigated. The wedge radial boundaries can be subjected to displacement-displacement boundary conditions, and the circular boundary of the wedge is free from any traction. The new finite complex transforms are employed to solve the problem. These finite complex transforms have complex analogies to both kinds of standard finite Mellin transforms. The traction free condition on the crack faces is expressed as a singular integral equation by using the exact analytical method. The explicit terms for the strength of singularity are extracted, showing the dependence of the order of the stress singularity on the wedge angle, material constants, and boundary conditions. A numerical method is used for solving the resultant singular integral equations. The displacement boundary condition may be a general term of the Taylor series expansion for the displacement prescribed on the radial edge of the wedge. Thus, the analysis of every kind of displacement boundary conditions can be obtained by the achieved results from the foregoing general displacement boundary condition. The obtained stress intensity factors (SIFs) at the crack tips are plotted and compared with those obtained by the finite element analysis (FEA).

• 出版日期2014-5