Effect of Weibull parameters and crack distribution on the failure probability of multi-layered SiC cladding
Source abstract
Abstract
Abstract In this paper, an improved Weibull failure probability model which considers initial cracks distributed in the cladding has been proposed. Considering the coupling of force, heat and irradiation acting on the multi-layered SiC cladding, failure probabilities of the cladding under different conditions have been obtained. The results indicate that compared to linear heat rate, the cladding is more sensitive to changes in inner pressure of fuel elements. The cladding can be optimized by adjusting the proportion of different layers. Further investigations indicate that effect of different Weibull parameters of CVD SiC on the failure probability is small and can be ignored in real fuel elements. Meanwhile, cracks in SiC composite layer and crack length have little effect on the failure probability. However, the initial inclination angle can affect the failure probability greatly. Results indicate that the most dangerous inclination angle in the cladding is about 73°.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Advanced ceramic materials synthesis · High Temperature Alloys and Creep
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Accident tolerant fuels for LWRs: a perspective10.1016/j.jnucmat.2013.12.005 ↗
2. Accident tolerant fuel cladding development: promise, status, and challenges10.1016/j.jnucmat.2017.12.043 ↗
3. Determination and prediction of axial/off-axial mechanical properties of SiC/SiC composites10.1016/j.fusengdes.2012.02.026 ↗
4. Damage mechanics modeling of the non-linear behavior of SiC/SiC ceramic matrix composite fuel cladding10.1016/j.jnucmat.2019.07.017 ↗
5. Thermo-mechanical analysis of LWR SiC/SiC composite cladding10.1016/j.jnucmat.2014.01.006 ↗
6. Thermo-mechanical assessment of full SiC/SiC composite cladding for LWR applications with sensitivity analysis10.1016/j.jnucmat.2017.11.004 ↗
7. Safety assessment of SiC cladding oxidation under loss-of-coolant accident conditions in light water reactors10.13182/NT12-122 ↗
8. Silicon carbide oxidation in steam up to 2 MPa10.1111/jace.13094 ↗
9. Mechanical performance of SiC three-layer cladding in PWRs10.1016/j.nucengdes.2016.10.008 ↗
10. Lan · 2017
11. A structural model for multi-layered ceramic cylinders and its application to silicon carbide cladding of light water reactor fuel10.1016/j.jnucmat.2014.12.013 ↗
12. Design optimization of multi-layer Silicon Carbide cladding for light water reactors10.1016/j.nucengdes.2016.11.016 ↗
13. Stress analysis and probabilistic assessment of multi-layer SiC-based accident tolerant nuclear fuel cladding10.1016/j.jnucmat.2015.08.001 ↗
14. Thermal shock resistance and hoop strength of triplex silicon carbide composite tubes10.1111/ijac.12753 ↗
15. Hydrothermal corrosion behavior of SiCf/SiC composites candidate for PWR accident tolerant fuel cladding10.1016/j.ceramint.2018.09.079 ↗
16. Failure behavior of SiC/SiC composite tubes under strain rates similar to the pellet-cladding mechanical interaction phase of reactivity-initiated accidents10.1016/j.jnucmat.2018.11.023 ↗
17. Failure probabilities of SiC clad fuel during a LOCA in public acceptable simple SMR (PASS)10.1016/j.nucengdes.2015.05.023 ↗
18. Failure probability analysis and design comparison of multi-layered SiC-based fuel cladding in PWRs10.1016/j.nucengdes.2018.02.017 ↗
19. Probabilistic view of SiC/SiC composite cladding failure based on full core thermo-mechanical response10.1016/j.jnucmat.2018.04.023 ↗
20. Characterization of SiC-SiC composites for accident tolerant fuel cladding10.1016/j.jnucmat.2015.08.020 ↗
21. Thermophysical and mechanical properties of near-stoichiometric fiber CVI SiC/SiC composites after neutron irradiation at elevated temperatures10.1016/j.jnucmat.2010.06.002 ↗
22. Progress in blanket designs using SiCf/SiC composites10.1016/S0920-3796(02)00213-2 ↗
23. Handbook of SiC properties for fuel performance modeling10.1016/j.jnucmat.2007.05.016 ↗
24. Stability of SiC and its composites at high neutron fluence10.1016/j.jnucmat.2010.12.088 ↗
25. Effect of initial coating crack on the mechanical performance of surface-coated zircaloy cladding10.1016/j.net.2020.09.029 ↗
26. A summary of fracture mechanics concepts10.1520/JTE11586J ↗
27. Tada · 1973
28. Evaluation of neutron irradiated silicon carbide and silicon carbide composites10.1016/j.jnucmat.2007.05.007 ↗
29. Hydrothermal Corrosion of first-generation dual-purpose coatings on silicon carbide for accident-tolerant fuel cladding10.1016/j.jnucmat.2020.152695 ↗