Qingfeng YANG, Zhexiao XIE, Ping CHEN, Jing ZHANG, Shixin GAO, Guochen DING, Yi ZHOU, Chunyu YIN, Shurong DING, Liang HE, Dan SUN. Research on multi-scale creep behaviors of UN-U 3Si 2 composite fuels[J]. NUCLEAR TECHNIQUES, 2022, 45(12): 120601
- NUCLEAR TECHNIQUES
- Vol. 45, Issue 12, 120601 (2022)
Fig. 1. Comparison of the calculated and experimental values of the UN creep model (a) and the U
3Si
2 creep model (b) (color online)
Fig. 2. Microstructure of UN-U
3Si
2 composite fuel pellets
Fig. 3. Flowchart diagram of random distribution modeling
Fig. 4. Schematic diagram of random distribution model
Fig. 5. Schematic diagram of periodic boundary conditions and applied loads for cube-shaped voxels
Fig. 6. Comparison of macroscopic equivalent creep strain with and without irradiation swelling
Fig. 7. Von Mises stress contourplots (section view) at the fission density of 4.32×1027 fissions·m-3 (a) With radiation swelling, (b) Without radiation swelling
Fig. 8. Equivalent creep contour plots (section view) at the fission density of 4.32×1027 fissions·m-3 (a) With radiation swelling, (b) Without radiation swelling
Fig. 9. Contribution of dispersed phase and matrix to total creep strain
Fig. 10. Proportions of different creep contribution
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