NUMERICAL SIMULATION OF THE IRRADIATION-MECHANICAL BEHAVIORS OF DISPERSION NUCLEAR FUEL ELEMENTS

摘要：

The metal-matrix dispersion nuclear fuel elements are widely used in the research and test nuclear reactors,which are formed by large numbers of small fuel particles and non-fissionable metal matrix.The produced thermal effects,the irradiation-induced particle swelling and the irradiation creep of the metal matrix all affect their security.A special unit cell for the simulations of the meso-strength and the thickness variation of the plate-type element is developed.Numerical results indicate that the thermal stresses hold a large fraction in the total stresses induced together by irradiation swelling and irradiation creep; the thickness variation mainly results from irradiation swelling.The effects of the irradiation creep are remarkable.

关键词： dispersion nuclear fuel element creep swelling composite

作者: Shurong Ding Yongzhong Huo Xin Jiang Yuanfu Wan

作者单位: Department of Mechanics and Engineering Science ,Fudan University,Shanghai 200433,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1518-1521

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）