TPMS结构抗侵彻性能数值研究  

Numerical Study on Anti-penetration Performance of TPMS Structure

作　　者：谢钟洋 杨春浩[1] 马吴宁[1] XIE Zhongyang;YANG Chunhao;MA Wuning(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《弹道学报》2025年第1期104-112,共9页Journal of Ballistics

摘　　要：作为一种具有出色力学性能和多功能特性的结构,点阵结构有高强度、高能量吸收等特点,为了研究三周极小曲面(TPMS)结构的抗侵彻性能,基于该结构的可设计性,建立Diamond型和Gyroid型的点阵结构模型,选择碳化硅陶瓷作为TPMS结构基体材料,利用ABAQUS有限元软件研究其抗侵彻性能。研究结果表明:在低速侵彻下,Diamond结构吸收能量的效果显著,而Gyroid结构在撞击中产生的非对称力及弹头的磨蚀能有效改变侵彻角度。针对Gyroid结构,分别对不同弹着点、不同入射角度,以及提升靶板厚度等不同的工况进行了有限元仿真,通过仿真结果分析了入射角度变化对Gyroid结构抗侵彻性能的影响,发现其射出角度的偏转程度随着入射角度的增大,呈现先减小后增大的趋势。另外,当弹丸冲击Gyroid结构凹陷的螺旋曲面时,会明显改变弹丸的射出角度。将Gyroid结构的厚度提升50%后,发现弹丸的射出角度变化提升176.92%,靶板吸收的能量提升78.26%。Gyroid结构通过自身独特的曲面结构能够有效改变弹丸的运动姿态,研究结果对轻量化装甲设计有一定的参考意义。As a structure with excellent mechanical properties and multifunctional characteristics,the lattice structure has the characteristics of high strength,high energy absorption,and the like.In order to study the anti-penetration performance of the triply periodic minimal surface(TPMS)structure,we established lattice structure models of the Diamond and Gyroid types based on this structure.Silicon carbide ceramics were selected as the matrix material of TPMS structure,and its anti-penetration performance was studied by the ABAQUS finite element software.The research results show that under low-speed penetration,the Diamond structure significantly improves energy absorption,while the asymmetrical forces generated during impact and the erosion of the projectile in the Gyroid structure can effectively change the penetration angle.Aiming at Gyroid structure,finite element simulation was carried out under different working conditions,such as different impact points,different incident angles and increasing target thickness,and the influence of the change of incident angle on the anti-penetration performance of the Gyroid structure was analyzed.The result shows that the deflection degree of the ejection angle decreases first and then increases with the increase of the incident angle.In addition,when the projectile impacts the spiral surface of the concave Gyroid structure,the ejection angle of the projectile can be obviously changed.After increasing the thickness of the Gyroid structure by 50%,the change of bullet ejection-angle increases by 176.92%,and the absorbed energy increases by 78.26%.The Gyroid structure can effectively change the motion attitude of the projectile through its unique curved-surface structure.The research results provide certain reference significance for lightweight armor design.

关 键 词：三周极小曲面结构 陶瓷 抗侵彻性能 有限元模拟 

分 类 号：TJ03[兵器科学与技术—兵器发射理论与技术]