正交梯形蜂窝铝抗冲击力学性能及核装备防护应用仿真模拟

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摘要为保证运输途中核乏燃料运输容器的安全，会在运输容器两端安装减震器，减震器内部填充减震材料，以防止运输容器内部穿刺破坏。本文首先制备了一种正交梯形蜂窝铝材料，并对制备的三种不同结构材料进行不同速度加载获得相关结果，结合试验获得的材料本构模型使用有限元方法进行仿真模拟，对比两者误差。为探明尺寸对材料性能的影响作用，用仿真手段对比两种不同尺寸正交梯形蜂窝铝的力学性能，发现两者之间的吸能存在一定函数关系。为了进一步缩小仿真所用时间，提出用等效模型模拟冲击过程。最后，用仿真手段模拟运输容器减震器的穿刺过程，评估正交梯形蜂窝铝作为减震填充材料的可行性。

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	邢攸冬
	王立虎
	卢世庆
	杨思一

关键词 ：核装备防护, 正交梯形蜂窝铝, 力学性能, 有限元仿真, 穿刺模拟

Abstract：In order to ensure the safety of the nuclear spent fuel transportation cask, impact limiters will be installed at both ends of the transportation cask, and inners are filled with filling materials to prevent from being punctured. In this paper, an orthogonal trapezoidal honeycomb aluminum material was prepared, and three different structural materials were loaded at different speeds. The relevant parameters obtained by the test are used for dynamic simulation using the finite element method, and the results of the test and simulation are compared, and it is found that they are consistent. To explore the influence of size on material properties, the mechanical properties of orthogonal trapezoidal honeycomb aluminum with different sizes (large size 500*500*500mm, small size 50*50*50mm) were compared by simulation, and it was found that the energy absorption between them has a functional relationship. In order to further reduce the simulation time, it is proposed to simulate the impact process with an equivalent model. Finally, the puncture process of the impact limiter of the transport cask is simulated, and the feasibility of the orthogonal trapezoidal honeycomb aluminum as the impact limiter filling material is characterized.

Key words： nuclear equipment protection orthogonal trapezoidal honeycomb aluminum mechanical properties finite element simulation puncture simulation

收稿日期: 2022-08-18 出版日期: 2023-08-28

引用本文:

邢攸冬，王立虎，卢世庆，杨思一. 正交梯形蜂窝铝抗冲击力学性能及核装备防护应用仿真模拟[J]. 振动与冲击, 2023, 42(16): 166-174.
XING Youdong,WANG Lihu,LU Shiqing,YANG Siyi . Impact resistance mechanical properties of orthogonal trapezoidal honeycomb aluminum and protective application of nuclear equipment under simulation. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(16): 166-174.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I16/166

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