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

FU Xinqiang1, XIE Zhihao1, LIU Lulu1, REN Yi2, ZHAO Zhenhua3, LUO Gang3, CHEN Wei1

Journal of Vibration and Shock ›› 2025, Vol. 44 ›› Issue (9) : 241-249.

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Journal of Vibration and Shock ›› 2025, Vol. 44 ›› Issue (9) : 241-249.
SHOCK AND EXPLOSION

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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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.

Key words

Additive manufacturing / lattice structure / quasi-static compression / impact resistance / numerical simulation

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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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