弹体材料性能对破片形成的影响

陈醇; 李伟兵; 王晓鸣; 李文彬; 刘汉鑫

doi:10.11858/gywlxb.2014.05.016

弹体材料性能对破片形成的影响

doi: 10.11858/gywlxb.2014.05.016

陈醇^1,,
李伟兵^1,*, ,,
王晓鸣¹,
李文彬¹,
刘汉鑫²

1.
南京理工大学智能弹药技术国防重点学科实验室，江苏南京 210094
2.
中国人民解放军73917部队，江苏南京 210094

基金项目: 国家自然科学基金(11202103)；南京理工大学紫金之星培养基金(2013ZJ-0201)

详细信息

作者简介:
陈醇(1989—), 男, 硕士, 主要从事弹体材料与高能炸药装药匹配技术研究.E-mail:saver120@163.com

通讯作者:
李伟兵(1982—)，男，博士，副教授，主要从事弹丸的终点效应与目标毁伤技术研究.E-mail: njustlwb@163.com

中图分类号: O389; TJ410.3
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出版历程
- 收稿日期: 2013-07-01
- 修回日期: 2013-08-14

Influence of Various Warhead Materials Characteristics on Fragments Forming

1.
ZNDY of Ministerial Key Laboratory Nanjing University of Science and Technology, Nanjing 210094, China
2.
People's Liberation Army 73917 Troop, Nanjing 210094, China

摘要

摘要: 为了获得弹体材料性能对破片形成的影响规律，应用破片战斗部设计软件，数值计算了82钢、50SiMnVB钢、40CrMnSiB钢及30CrMnSiNi2A钢等4种材料形成破片的情况，得到了4种材料形成的破片的飞散角、初速及质量分布的变化规律，并进行了破片质量分布的实验研究。结果表明，不同合金钢材料对形成的破片飞散角与初速的影响不大, 且沿弹体轴向方向的变化规律相同，其中破片飞散角沿弹轴方向先减小后增大，破片的最大初速出现在距起爆点约72.5%圆筒长度处；但是对破片质量分布情况的影响较大，随着材料极限抗拉强度的增加和断裂韧性的降低，弹体破碎程度升高，总破片数增加了39.3%。
- 弹药工程 /
- 壳体材料 /
- 破片战斗部 /
- 破片质量分布 /
- 数值计算
Abstract: In order to acquire the influence of warhead shell materials on fragments forming, 4 kinds of material, such as 82 steel, 50SiMnVB steel, 40CrMnSiB steel, 30CrMnSiNi2A steel, were studied to form fragments, using fragment warhead design software.The change laws of fragments scattering angle, initial velocity and mass distribution were obtained, and the fragment mass distribution was researched by experiment.It is found that, various alloy steels have similar almost the same influence on the fragments scattering angle and initial velocity, and have same diversification regular pattern along the warhead axial.Specially, the fragments scattering angle decreases at first and then increases, and its maximum initial velocity appears at the place about 72.5% of warhead length.But various alloy steel has very different influences on fragmens mass distribution.With materials ultimate tensile strength increasing and fracture toughness decreasing, the warhead damage extent improves and total fragments number increases by 39.3%.
- projectile engineering /
- shell materials /
- fragment warhead /
- fragment mass distribution /
- numerical calculation

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图 1 模型结构图

Figure 1. Model structure

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图 2 破片飞散角、初速沿弹轴方向的变化规律曲线

(a) Fragments scattering angle (b) Fragment initial velocity

Figure 2. Change curve of fragments scattering angle and initial velocity along axial direction

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图 3 4种材料形成的破片总数及1 g以上破片的数量

Figure 3. Total number of fragments formed by 4 kinds of material and the number of fragments over 1 g

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图 4 实验布置示意图

Figure 4. Experimental layout sketch

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图 5 实验现场布置

Figure 5. Experimental site layout

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图 6 破片质量分组

(a) 82 steel (b) 50SiMnVB (c) 40CrMnSiB (d) 30CrMnSiNi2A

Figure 6. Fragment grouping on mass distribution

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图 7 实验获得的破片质量分布

Figure 7. Experimental results of fragment mass distribution

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图 8 破片质量分布数值计算与实验结果的对比

Figure 8. Comparison between numerical calculation and experimental results of fragment mass distribution

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表 1 材料性能参数

Table 1. Material characteristic parameters

No.	Material	Explosive type	ρ₀/ (g/cm³)	Ultimate tensile strength/(MPa)	Young's modulus /(GPa)	Fracture toughness	Heat treatment
1	82 steel	Jo-8	7.84	960	210	91	Quench and Temper
2	50SiMnVB	Jo-8	7.86	1 190	209	51	Normalize+Quench+Temper
3	40CrMnSiB	Jo-8	7.87	1 250	193	64	Normalize+Quench+Temper
4	30CrMnSiNi2A	Jo-8	7.85	1 650	210	61^[5]	Normalize+Quench+Temper

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参考文献(7)

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