[1]周敬,杨丽侠,张邹邹,等.高能发射药动态力学强度的影响因素研究[J].爆破器材,2016,45(02):29-33.[doi:10.3969/j.issn.1001-8352.2016.02.007]
　ZHOU Jing,YANG Lixia,ZHANG Zouzou,et al.Study on the Influence Factors of Dynamic Mechanical Properties of Highenergy Gun Propellant[J].EXPLOSIVE MATERIALS,2016,45(02):29-33.[doi:10.3969/j.issn.1001-8352.2016.02.007]
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高能发射药动态力学强度的影响因素研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
45
期数:
2016年02
页码:
29-33
栏目:
爆炸材料
出版日期:
2016-03-27

文章信息/Info

Title:
Study on the Influence Factors of Dynamic Mechanical Properties of Highenergy Gun Propellant
文章编号:
5042
作者:
周敬; 杨丽侠; 张邹邹; 刘来东; 刘强
西安近代化学研究所（陕西西安,710065）
Author(s):
ZHOU Jing;  YANG Lixia;  ZHANG Zouzou;  LIU Laidong;  LIU Qiang
Xi‘an Modern Chemistry Research Institute (Shaanxi Xi’an, 710065)
关键词:
应用化学; 高能发射药; 落锤撞击; 影响因素
Keywords:
applied chemistry;  high-energy gun propellant;  the dropping hammer impact;  influence factors
分类号:
TQ562
DOI:
10.3969/j.issn.1001-8352.2016.02.007
文献标志码:
A
摘要:
对19孔的高能发射药进行落锤撞击试验，观测药粒撞击损伤状态以及F-t曲线，研究药粒受力方向、撞击能以及温度等对高能发射药动态力学强度的影响。结果表明，改变受力方向，裂纹和破碎均在沿发射药的轴线方向上出现，表明发射药力学强度的各向异性；因为受径向撞击作用时，发射药粒易于破碎，故装药设计时，可使发射药的主要受力方向为轴向排布，可有效防止发射药的撞击破碎。随着撞击能提高，发射药的损伤百分数增加，F-t曲线上峰值逐渐增大，增大的幅度不断减小。随着温度升高，F-t曲线峰值由25.0 kN降为5.8 kN，脉宽由1.6 ms增加至5.1ms，发射药的响应情况由脆性断裂逐渐转变为塑性形变。
Abstract:
High-energy gun propellant was impacted by the drop hammer device, and the influences of stress direction, impact energy and temperature for the dynamic mechanical property of propellant were studied by observing the response of propellants and F-t curves. The results indicate that the fissure or broken is appeared on axial side, no matter the stress is on the axial or radial side, which show the anisotropy of mechanical strength of propellant. The propellant is easily broken when the force on the radial side, so the propellants should be place on axial side with the main press direction when charge design for propellant, which can effectively prevent the impact crushing of propellant. With the impact energy increases, the fracture percent of gun propellant and the peak of F-t curve is increased, but the growth rate is decreased. With the increase of the temperature, the response of propellants are changed from brittle fracture to plastic deformation, the peak of F-t curve is reduced from 25.0 kN to 5.8 kN, and the pulse width is increased from 1.6 ms to 5.1 ms.

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备注/Memo

备注/Memo:
收稿日期：2015-11-02
作者简介：周敬（1988~），女，硕士，从事发射药性能检测研究。E-mail:812602940@qq.com
通信作者：杨丽侠（1964~），女，研究员，从事发射药装药及性能检测与评估研究。E-mail:yang_1xxa@sina.com
更新日期/Last Update: 2016-03-28