Functional Materials, 23, No.2 (2016), p.224-229.
Research on stress intensity factors of elliptical hole in infinite body
1College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, P.R.China
2Science college, Heilongjiang Institute of Science and Technology, Harbin 150022, P.R.China
3Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin, 150001, P.R.China
This paper deals with such a kind of surface crack problem with an approximately same depth by using the hybrid displacement discontinuity method (a boundary element method) proposed recently by the author. Based on surface rectangular crack in infinite solid in tension and a hybrid displacement discontinuity method, a numerical approach is presented. By changing geometry parameters of elliptical hole, the effect of geometry parameters of the elliptical hole in infinite body in tension on the SIFs is revealed in detail. It is illustrated that the boundary element method is simple, yet accurate for calculating the SIFs of complex crack problems in finite plate.
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