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Numerical simulation of projectiles with different structures penetrating multi-storey concrete target board

 

JIN Shu-yun, ZHU Qian-qian, NING Qian-hui

 

(Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China)

 

Abstract: Because the difference between the acceleration curve of traditional projectile structure and the measured acceleration curve is large, refining projectile structure is proposed. After setting up multi-storey concrete target board penetrated by the projectiles with different structures, the simulations with traditional projectile structure and refining projectile structure are conducted using ANSYS/LS-DYNA, and two acceleration curves are obtained, respectively. And then the target experiment that the projectile penetrates eight-storey concrete board is conducted and the measured acceleration curves are obtained. By comparing the simulation acceleration curves with the measured acceleration curves, it can be concluded that the acceleration curve with refined projectile structure is closer to the measured curve. Therefore, the simulation curve with refined projectile structure is of higher reference value for simulation research.

 

Key words: refined projectile structure; LS-DYNA; acceleration curve

 

CLD number: TJ410.6 Document code: A

 

Article ID: 1674-8042(2014)03-0001-05   doi: 10.3969/j.issn.1674-8042.2014.03.001

 

References

 

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不同结构弹体侵彻混凝土靶板数值模拟

 

靳书云, 朱倩倩, 宁倩慧

 

(中北大学 电子测试技术国家重点实验室,山西 太原 030051)

 

摘要:针对用传统结构弹体进行侵彻数值模拟得到的加速度曲线与实测加速度曲线相差较大的问题, 提出细化弹体结构进行数值模拟实验的方法。 应用ANSYS/LS-DYNA对传统结构弹体和细化结构弹体侵彻8层混凝土靶板进行数值模拟, 提取了两组加速度曲线; 设计了打靶试验方案, 获得实测加速度曲线。 将两组仿真曲线与实测曲线比较后发现, 细化结构弹体仿真加速度曲线更接近实测曲线。 因此在数值模拟研究中, 利用细化结构弹体得到的曲线更具有参考价值。

 

关键词:细化弹体结构; LS-DYNA; 加速度曲线

 

引用格式: JIN Shu-yun, ZHU Qian-qian, NING Qian-hui. Numerical simulation of projectiles with different structures penetrating multi-storey concrete target board. Journal of Measurement Science and Instrumentation, 2014, 5(3): 1-5. [doi: 10.3969/j.issn.1674-8042.2014.03.001]

 

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