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

<div>SEM images of fracture surfaces for QT400 nodular cast iron in combined tension-torsion tests with different tension-torsion ratios on the fracture surface of the specimen with tension-torsion ratio (a) <i>P/T</i> = 0.0, (b) <i>P/T</i> = 0.17, (c) <i>P/T</i> = 0.38, and (d) <i>P/T</i> = 0.72.</div>

Science and Technology of Nuclear Installations

fig5

Figure 5

Figure 5: A Fracture Criterion for Prediction of Fracture Initiation of Metal Materials at Various Stress States for Nuclear Waste Storage 