增材制造点阵结构抗高速冲击性能试验与仿真研究

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (9) : 241-249.

冲击与爆炸

增材制造点阵结构抗高速冲击性能试验与仿真研究

付鑫强1，谢志浩1，刘璐璐*1，任毅2，赵振华3，罗刚3，陈伟1

作者信息 +

Test and simulation study on high-speed impact resistance of additive manufacturing lattice structure

FU Xinqiang1, XIE Zhihao1, LIU Lulu*1, REN Yi2, ZHAO Zhenhua3, LUO Gang3, CHEN Wei1

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文章历史 +

摘要

通过试验与仿真方法研究了增材制造钛合金点阵结构的准静态/动态压缩力学性能与破坏形貌，验证了增材制造钛合金动态本构模型；利用空气炮系统开展了点阵结构的高速冲击试验，建立了点阵结构宏细观结合的数值仿真模型。结果表明：点阵结构在准静态/动态压缩载荷下主要表现为剪切损伤；在动态压缩载荷作用下结构表现出明显的应变率强化效应；所采用的增材制造钛合金动态本构模型能有效模拟点阵结构的准静态/动态压缩性能与应变率强化效应；在高速冲击作用下，点阵结构主要表现为冲击区域的剪切破坏和压溃损伤；宏细观结合的数值仿真方法能够显著减少计算时长并有效模拟点阵结构在高速冲击过程中的损伤。

Abstract

The quasi-static/dynamic compressive mechanical properties and failure morphology of F2BCC structure of additive manufactured titanium alloy were studied by test and simulation, and the dynamic constitutive model of additive manufactured titanium alloy was verified. The high-speed impact test of lattice structure was carried out by air gun system, and the numerical simulation model of macro-micro combination of lattice structure was established. The results showed that the lattice structure was mainly characterized by shear damage under quasi-static/dynamic compression load. The structure showed obvious strain rate strengthening effect under dynamic compression load. The dynamic constitutive model of additive manufacturing titanium alloy can effectively simulate the quasi-static/dynamic compression performance and strain rate strengthening effect of lattice structure. Under high-speed impact, the lattice structure was mainly characterized by shear failure and crushing damage in the impact area. The numerical simulation method of macro-micro combination can significantly reduce the calculation time and effectively simulate the damage of lattice structure during high-speed impact.

导出引用

付鑫强1, 谢志浩1, 刘璐璐1, 任毅2, 赵振华3, 罗刚3, 陈伟1. 增材制造点阵结构抗高速冲击性能试验与仿真研究[J]. 振动与冲击, 2025, 44(9): 241-249

FU Xinqiang1, XIE Zhihao1, LIU Lulu1, REN Yi2, ZHAO Zhenhua3, LUO Gang3, CHEN Wei1. Test and simulation study on high-speed impact resistance of additive manufacturing lattice structure[J]. Journal of Vibration and Shock, 2025, 44(9): 241-249

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