Research Article

A Fracture Criterion for Prediction of Fracture Initiation of Metal Materials at Various Stress States for Nuclear Waste Storage

Figure 6

The distribution of stress triaxiality at the crack tip in the loading conditions of (a) mode I (βeq = 90°), (b) mixed mode I/II (βeq = 45°), (c) mixed mode I/II (βeq = 30°), (d) mixed mode I/II (βeq = 15°), (e) mode II (βeq = 0°).
(a)
(b)
(c)
(d)
(e)