A Stress Analysis for a Coated Fuel Particle of A HTGR Using a Finite Element Method
Creators
- 1. Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)
Description
A finite element method utilizing the Galerkin form of the weighted residuals procedure was developed to estimate the mechanical behavior for a coated fuel particle (CFP) of a high temperature gas-cooled reactor (HTGR). Through a weak formulation, finite element equations for multiple layers were set up to calculate the displacements and stresses in a CFP. The finite element method was applied to the stress analyses for three coating layers of a tri-isotropic coated fuel particle (TRISO) of a HTGR. The stresses calculated by the finite element method were in good agreement with those from a previously developed computer code and depicted the typical stress behavior of the coating layers very well. The newly developed finite element method performs a stress analysis for multiple bonded layers in a CFP by changing the material properties at any position in the layers during irradiation
Additional details
Publishing Information
- Journal Title
- Nuclear Engineering and Technology
- Journal Volume
- 41
- Journal Issue
- 8
- Series
- 23 refs, 14 figs, 4 tabs
- Journal Page Range
- p. 1087-1100
- ISSN
- 1738-5733
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 41088335
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- COATED FUEL PARTICLES; COMPUTER CODES; FINITE ELEMENT METHOD; HTGR TYPE REACTORS; IRRADIATION; STRESS ANALYSIS
- Descriptors DEC
- CALCULATION METHODS; FUEL PARTICLES; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; MATHEMATICAL SOLUTIONS; NUMERICAL SOLUTION; REACTORS