核电站高密度交联聚乙烯高完整性容器抗跌落和贯穿的安全评估

Security Assessment for Anti-falling and Anti-penetrating Performance of Cross-linked High-density Polyethylene High Integrity Container for Nuclear Power Station

利用非线性动力分析软件LS-DYNA仿真分析了高密度交联聚乙烯完整性容器(PE-XHD-HIC)在核电产业使用过程中的跌落和贯穿2种典型工况,论证了国产化高完整性容器(HIC)的安全性能。仿真结果显示,高完整性容器在1.2m的跌落过程和贯穿过程两种典型工况下,容器的最大应力均小于材料强度极限,最大应变小于材料的破坏应变;国产化PE-XHD-HIC满足在跌落和贯穿事故下的性能要求,使用安全可靠。

The cross-linked high-density polyethylene high integrity container（PE-XHD-HIC）has been applied to deal with low-and middle-radioactive wastes of nuclear power station.A security assessment for PE-XHD-HIC was performed by the nonlinear dynamics software LS-DYNA to simulate its anti-falling and anti-penetrating performance at a height of 1.2 munder the two typical actual accident conditions of nuclear power station.The simulation results indicated that the stress of PE-XHD-HIC was less than its ultimate strength,whereas its maximum strain was less than the damage strain.The PE-XHD-HIC was verified to meet all the requirements in operation and security.