Published July 1979
| Version v1
Report
Influence of thermal cracking on transient pre-failure molten fuel motion
Description
Under hypothetical transient conditions analyzed in the frame of safety investigations of LMFBRs, the fuel pin will undergo various modifications which influence remarkably the instant and the location of the clad failure. The essential part of the present contribution concerns cracked fuel behaviour and transient pre-failure fuel relocation. Enhanced by experimental evidences a new transient model, called BREDA-III A, was developed which allows a more detailed simulation of the fuel pin behaviour under accident conditions until pin failure. The application of the model has led to a better understanding of the sequence of physical events observed during moderate transient overpower (TOP) experiments
Additional details
Additional titles
- Augmented title (English)
- LMFBR
Publishing Information
- Imprint Title
- Specialists' workshop on predictive analysis of material dynamics in LMFBR safety experiments, March 13-15, 1979
- Journal Page Range
- p. 21-38.
- Report number
- LA--7938-C
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11513742
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- CRACKS; FUEL CANS; FUEL ELEMENT FAILURE; FUEL PINS; LMFBR TYPE REACTORS; MATHEMATICAL MODELS; REACTOR SAFETY; THERMAL STRESSES; TRANSIENT OVERPOWER ACCIDENTS
- Descriptors DEC
- ACCIDENTS; BREEDER REACTORS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; FUEL ELEMENTS; LIQUID METAL COOLED REACTORS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; SAFETY; STRESSES