弹体材料性能对破片形成的影响  

Influence of Various Warhead Materials Characteristics on Fragments Forming

作　　者：陈醇[1] 李伟兵[1] 王晓鸣[1] 李文彬[1] 刘汉鑫 

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室 [2]中国人民解放军73917部队

出　　处：《高压物理学报》2014年第5期611-616,共6页Chinese Journal of High Pressure Physics

基　　金：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)

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%。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%.

关 键 词：弹药工程 壳体材料 破片战斗部 破片质量分布 数值计算 

分 类 号：O389[理学—流体力学] TJ410.3[理学—力学]