The results show that the expansion tube is stable in the expansion-deformation stage, and features linear overlap characteristic in energy absorption and easy to control;

结果表明，扩胀管在扩胀变形阶段状态稳定，吸能具有线性叠加特性，易于控制；

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The results show that the expansion tube is stable in the expansion-deformation stage, and features linear overlap characteristic in energy absorption and easy to control;

结果表明，扩胀管在扩胀变形阶段状态稳定，吸能具有线性叠加特性，易于控制；

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