摘要
为指导基于冲击片雷管驱动飞片的起爆传爆序列设计,采用数值模拟方法计算获得了六硝基茋(HNS-Ⅳ)炸药驱动不同材料(不锈钢、钛合金、铝),不同厚度(0.1～0.5 mm)和不同直径(3,4,5 mm)飞片速度与形态。计算结果表明:在同一厚度下,铝飞片的速度最高,钛合金飞片其次,不锈钢飞片最低,这与其密度关系相对应;对于同种材料,随着飞片厚度的增加,飞片速度逐渐减小,并趋于一个极值;不同直径飞片被爆轰剪切后,其有效直径均有所减小,其中,Φ4 mm和Φ5 mm飞片的有效直径相当,分别为3.6 mm和3.4 mm,Φ3 mm飞片最小,仅为2.8 mm。在爆轰波作用下,HNS-Ⅳ炸药驱动不同直径、0.10 mm厚度钛合金飞片,Φ4 mm和Φ5 mm飞片略呈球面状,而Φ3 mm飞片形态较为平整,分析认为冲击波反射驱动是其形态平整的主要原因。
To guide the detonating sequence design of the flyer driven by the impingement detonator,the numerical simulation method was used to calculate and obtain the velocity and shape of the flyer wih different materials(Stainless steel,titanium al-loy,aluminum),different thickness(0.1-0.5 mm)and different diameter(3,4 mm and 5 mm)driven by hexanitrostilbene-IV(HNS-Ⅳ)explosive.The calculation results show that at the same thickness,the velocity of the aluminum flyer is the highest,the velocity of the titanium alloy flyer is second,the velocity of the stainless steel flyer is the lowest,which is relative to their densities.For the same material,with increasing the thickness of flyer,the flyer velocity decreases gradually and tends to an ex-treme value.After detonation shearing of flyer with different diameter,the effective diameters of the fliers are reduced,in which,the effective diameters ofΦ4 mm andΦ5 mm flyers are the same as those of 3.6 mm and 3.4 mm,respectively,and theΦ3 mm flyer is the smallest,only 2.8 mm.Under the action of detonation wave,HNS-Ⅳexplosive drives titanium alloy flyer with differ-ent diameter and 0.10 mm thickness,and theΦ4 mm andΦ5 mm flyers are slightly spherical,and the shape ofΦ3 mm flyer is more flat.It is considered that the shock wave reflection drive is the main reason of its flat shape.
作者
陈清畴
马弢
李勇
CHEN Qing-chou;MA Tao;LI Yong(Institute of Chemical Material,CAEP,Mianyang 621999,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2018年第10期814-819,共6页
Chinese Journal of Energetic Materials
作者简介
陈清畴(1983-),男,助理研究员,主要从事钝感火工品和爆轰数值模拟计算。e-mail:chenqingchou@caep.cn;通信联系人:李勇(1986-),男,助理研究员,主要从事半导体桥火工品研究。e-mail:liyong_icm@caep.cn。
