PSI - Issue 28

L.V. Stepanova et al. / Procedia Structural Integrity 28 (2020) 1781–1786 Author name / Structural Integrity Procedia 00 (2019) 000–000

1785 5

0.8896724. 1 p M   the asymptotic solution is described by formulae (9), corresponding to pure mode I loading. The circumferential distributions of the stress components for all values of the mixity parameter are shown in figs. 1-3. p M  For all the values of the mixity parameter from 0.8896724

σ rr

M =1 p M =0.889 p M =0.88 p M =0.87 p M =0.84 p M =0.8 p M =0.7 p

2

1.5

1

0.5

M =0 p M =0.1 p M =0.2 p M =0.3 p M =0.4 p M =0.5 p M =0.6 p M =0.34 p

0

-0.5

-1

θ

-2

3

-1

1

2

-3

0

(0) rr  in the vicinity of the crack tip for different values of the mixity parameter (plane strain condition).

Fig. 1. Distributions of the radial stress

2.5 σ θθ

M =1 p M =0.889 p M =0.88 p M =0.87 p M =0.84 p M =0.8 p M =0.7 p

2

1.5

1

0.5

M =0 p M =0.1 p M =0.2 p M =0.3 p M =0.4 p M =0.5 p M =0.6 p M =0.34 p

0

-0.5

-1

θ

-2

3

-1

1

2

-3

0

(0)   in the vicinity of the crack tip for different values of the mixity parameter (plane strain condition).

Fig.2. Distributions of the circumferential stress