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Study on aluminum foam as a filler material for impact limiter of spent fuel transport cask

机译：泡沫铝作为乏燃料运输罐冲击限制器的填充材料的研究

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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 (σ ys ) and plateau stress (σ pl ) of aluminum foam with density of 0.64 g/cm~(3)can reach 8.26 MPa and 11.11 MPa respectively, and the energy absorption capacity (W_(EA)) and unit energy absorption capacity (W_(SEA)) can reach 6.31 x 10~(3)KJ/m~(3)and 9.87 KJ/Kg respectively, and the difference between the foam with density of 0.61g/cm~(3)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.
机译：乏燃料运输桶是乏燃料运输的重要载体。安装在容器两端的冲击限制器的主要功能是吸收能量并限制过载，以确保结构的完整性。在ANSYS Workbench平台上模拟了泡沫铝的准静态压缩过程。通过熔融发泡法制备泡沫铝，并进行准静态压缩试验。实验结果表明，泡沫铝的变形过程与实验基本相同，具有良好的压缩和能量吸收性能。密度为0.64 g / cm〜（3）的泡沫铝的屈服应力（σys）和平稳应力（σpl）分别达到8.26 MPa和11.11 MPa，能量吸收能力（W_（EA））和单位能量吸收能力（W_（SEA））分别达到6.31 x 10〜（3）KJ / m〜（3）和9.87 KJ / Kg，密度为0.61g / cm〜（3）的泡沫与它的各种特性很小。可以得出结论，在一定密度范围内的泡沫铝具有大致相同的性能，也反映了泡沫铝性能的稳定性。另外，泡沫铝是各向同性的材料，当用作用于乏燃料运输桶的减震器填充材料时，可以克服方向限制。

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