Fig. 1. Block diagram of the failure probability calculation of SiC claddings under transient accidents

Fig. 2. Schematic of a double-layer SiC composite cladding

Fig. 3. Flowchart of process of solving the CMC failure probability

Fig. 4. Changes in the fuel cladding parameters after a LOCA(a) Cladding surface temperature, (b) Cladding external pressure, (c) Cladding internal pressure

Fig. 5. Failure probability of SiC claddings under a LOCA (layer thickness ratio of 5:5)

Fig. 6. Transient variation in the ratio of mechanical and thermal stresses to the total stress in annular and radial directions

Fig. 7. Variation in the transient failure probability of bilayer SiC claddings with different layer thickness ratios under a LOCA

Fig. 8. Sensitivity analysis of the failure probability of bilayer SiC claddings under transient conditions (5:5) (a) Change in m, (b) Change in σ₀

Fig. 9. Sensitivity analysis of the failure probability of bilayer SiC claddings under transient conditions