Finite element stress analysis for coated particle fuel modeling under normal operating conditions

Journal Article · Tue Oct 01 00:00:00 EDT 1991 · Nuclear Technology; (United States)

OSTI ID:5602343

Bennett, R G ^[1]

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1. EG and G Idaho, Inc., Idaho Falls, ID (US)

This paper reports on finite element modeling of the stresses in TRISO-coated fuel particles under normal operating conditions that is undertaken with the ABAQUS code. Accurate results for the coating layer stresses are obtained with 30 finite elements in the model and {approximately}100 time steps through the life of the fuel. When compared to an earlier General Atomics/Forschungszentrum Julich (Ga/KFA) computer model of fuel performance, several discrepancies are uncovered in the earlier model. The GA/KFA model underpredicts the stresses in the silicon carbide layer, and the discrepancy increases with fission gas pressure.

• OSTI ID: 5602343
• Journal Information: Nuclear Technology; (United States), Vol. 96:1; ISSN 0029-5450
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
FUEL PARTICLES
COATINGS
NUCLEAR FUELS
COMPUTERIZED SIMULATION
A CODES
FINITE ELEMENT METHOD
FISSION
GASES
PERFORMANCE
PRESSURE EFFECTS
SILICON CARBIDES
STRESSES
CARBIDES
CARBON COMPOUNDS
COMPUTER CODES
ENERGY SOURCES
FLUIDS
FUELS
MATERIALS
NUCLEAR REACTIONS
NUMERICAL SOLUTION
REACTOR MATERIALS
SILICON COMPOUNDS
SIMULATION
050700* - Nuclear Fuels- Fuels Production & Properties
990200 - Mathematics & Computers