1986 Volume 29 Issue 248 Pages 334-342
In this report, the authors pointed out the fact that the second stage fatigue crack propagation rate of a side grooved specimen becomes lower than that of a non-side grooved one. And also, they explained above phenomenon using three dimensional finite element method(3D-FEM). Namely, the reduction of the mean stress intensity factor by the addition of the side grooves is the main reason for this phenomenon. Therefore, it is possible to estimate the crack propagation behaviour of the side grooved specimen from that of the non side grooved one using the 3D-FEM without the experimental results of side grooved specimens. Further, the authors propose three simple methods to get the stress intensity factor for the side grooved specimen and show the merit of them. The methods are based on the methods of two dimensional finite element analysis (2D-FEM), the crack opening displacement and the theory of the mechanics of materials.
JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing
JSME International Journal Series B Fluids and Thermal Engineering
JSME International Journal Series A Solid Mechanics and Material Engineering
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing
JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry
JSME international journal. Ser. A, Mechanics and material engineering
JSME international journal. Ser. 1, Solid mechanics, strength of materials