Abstract
Spent fuel transport cask is a significant carrier of spent fuel transport. The main function of impact limiters installed at both ends of the container is to absorb energy and limit overload to ensure the integrity of the structure. The quasi-static compression process of aluminum foam was simulated on the platform of ANSYS Workbench. Foam aluminum was prepared by melt foaming method and quasi static compression test was carried out. The experimental results show that the deformation process of aluminum foam is basically the same as that of experiment, and the aluminum foam has good compressive and energy absorption properties. The yield stress (σys) and plateau stress (σpl) of aluminum foam with density of 0.64 g/cm3 can reach 8.26 MPa and 11.11 MPa respectively, and the energy absorption capacity (WEA) and unit energy absorption capacity (WSEA) can reach 6.31 x 103KJ/m3 and 9.87 KJ/Kg respectively, and the difference between the foam with density of 0.61g/cm3 and its various properties is very small. It can be concluded that the aluminum foam in a certain density range has roughly the same performance, and it also reflected the stability of aluminum foam's performance. Additionally, aluminum foam is an isotropic material, which can overcome directional limitation when used as shock absorber filler material for spent fuel transport cask.
Highlights
Spent fuel transport is the link between nuclear power plant and reprocessing plant or final disposal plant
It controls the continuous operation of both plants to a certain extent, and spent fuel transport cask is a significant carrier to achieving this process [1, 2]
Pair of impact limiters installed on the top and the bottom of a transport cask is the crucial safety component to absorb most of the impact energy and limit overload, which can ensure the integrity of the structure
Summary
Spent fuel transport is the link between nuclear power plant and reprocessing plant or final disposal plant. It controls the continuous operation of both plants to a certain extent, and spent fuel transport cask is a significant carrier to achieving this process [1, 2]. To ensure the integrity of the transport cask under normal transport and accident conditions, the International Atomic Energy Agency (IAEA) issued the "Regulations for the Safe Transport of Radioactive Materials"[3]. Pair of impact limiters installed on the top and the bottom of a transport cask is the crucial safety component to absorb most of the impact energy and limit overload, which can ensure the integrity of the structure
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