It is generally recognized that structural problems are often non-deterministic. This is also the case for power reactor fuel. The stochastic behaviour of such fuel has been clearly demonstrated from numerous test reactor experiments, as well as from power reactor experience. Any attempt to calculate the reliability of nuclear fuel thus leads to a probabilistic approach, as outlined in this paper. The first part of the fuel reliability prediction is the calculation of the fuel state (distributions of temperature, stress, strain, etc., in pellet and clad) as a function of time. This part is implemented as a computer code, FRP This paper summarises the theory behind FPP and presents an example of a reliability calculation.
|Place of Publication||Roskilde, Denmark|
|Publisher||Risø National Laboratory|
|Number of pages||19|
|Publication status||Published - 1977|