本研究进行了辐照条件下UN-U3Si2复合燃料蠕变的研究,通过开展大规模计算,得到了复合燃料不同微观结构及不同辐照工况下的宏观等效蠕变应变,根据数值模拟结果拟合了基于机制的UN-U3Si2复合燃料宏观等效蠕变率的多变量数理模型,模型的正确性可以得到验证。
The creep behavior of UN-U3Si2 composite fuel under irradiation was studied, and the macro-equivalent creep strains of the composite fuel under different microstructure and irradiation conditions were obtained by large-scale calculation, according to the results of numerical simulation, a multi-variable mathematical model based on mechanism for the macro-equivalent creep rate of UN-U3Si2 composite fuel is fitted, and the correctness of the model can be verified.