It is essential to designing and preventing the failure of fuel pellet in operating conditions to predicts the thermo-mechanical Performance of fuel pellet in nuclear reactor. In this paper, the structural analysis taken for fuel elements in operating parameters of nuclear reactor. For performing this analysis firstly, the thermal analysis of fuel pellet is taken to get the unsteady temperature distribution in the fuel pellet and after that these thermal loads are utilized in the structural analysis.
By performing this analysis, the displacement stress and strain values of fuel pellet are find out for gap thickness in the cladding and pellet surface from structural analysis, it is known that expansion due to thermal effectuations and itâ€™s within limit.
For cladding and pellet, the governed equations are considered and the physical and thermal properties are considered while taking analysis the height of fuel element is greater than the outer diameter of fuel element rod. So the axially temperature variation is not considered within analysis so there is 1-d heat transfer equation formation.
So far for this analysis, a finite element method is used, ANSYS is used to discretization as Computational Domain. The combined analysis of fuel element is taken out for finding temperature thermal expansions, heat fluxes generation and the stress-strain parameters..
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.