高级搜索

您是今天第:2091位访问者

您是第:7391306位访问者

冲击载荷作用下两种HMX基抗高过载炸药损伤特性
Damage Characteristics of Two HMX-based Anti-overloaded Explosives under Shock Loading
  • 摘要
  •  
  • 参考文献
  •  
  • 引证文献
  •  
  • 相似文献
中文摘要:
      为研究炸药在高过载条件下的损伤特性及损伤破坏机理,选取两种不同成型工艺下(浇注,压装)的奥克托今(HMX)基抗高过载炸药作为研究对象,用冲击波感度试验对炸药进行冲击损伤,通过CT检测表征试验前后炸药的损伤程度,同时测试了冲击损伤后炸药的冲击波感度。CT检测结果表明,冲击损伤后压装成型炸药各观测界面均未出现宏观损伤,而浇注成型炸药在距见证板一端7~8 mm位置,出现了长度7~8 mm、直径1~2 mm的孔洞,浇注炸药在距离下端面40 mm以上,损伤后的CT值降低1%~5%,压装炸药在距离下端面50 mm以上,损伤后的CT值升高 1%~8%。冲击损伤后两种炸药的冲击波感度均降低,其中浇成型注炸药由未损伤时的临界隔板厚度25~27 mm下降到13~15 mm;压装成型炸药由未损伤时的临界隔板厚度38~40 mm下降到30~32 mm。
中文关键词: 冲击损伤  HMX基抗高过载炸药  损伤特性  冲击波感度  CT检测
英文摘要:
      Two kinds(casting moulding and pressed fitting) of HMX-based anti-overloaded explosives were chosen to study the damage characteristics and damage failure mechanisms of explosives under overloaded conditions by shock loading. The shock damage was conducted based on shock wave sensitivity test. The damage characteristics of samples before and after shock loading were studied by CT and the shock wave sensitivity was also tested after damage. Results of CT test show that no macro-damage appear in explosive by pressed fitting after the shock damage, while a cavity with length of 7-8 mm and diameter of 1-2 mm appears in cast explosive and is located at 7-8 mm away from one end of the witness board. After shock damage experiments, for cast explosive, above the position of 40 mm from the bottom surface, the explosive density decrease by 1%-5% , and for the pressed fitting explosive, above the position of 50 mm from the bottom surface, the explosive density increase by 1%-8%. The shock wave sensitivity of the both samples decreases after shock damage. The critical gap thicknesses of the cast explosive decreases from 25-27 mm before damaged to 13-15 mm after damaged, while for pressed fitting explosive, the thickness decrease from 38-40 mm to 30-32 mm.
英文关键词: shock damage  HMX-based anti-overloaded explosive  damage characteristics  shock wave sensitivity  CT test
DOI:10.11943/j.issn.1006-9941.2017.12.004
投稿日期:2017-01-22
最后修改日期:2017-06-25
网络出版日期:2017-12-27
书版出版日期:2018-01-29
基金项目:总装备部预研基金项目(9140C350504150C35161)
引用文献:姜夕博,金朋刚,王建灵,杨建,王晓峰,等.冲击载荷作用下两种HMX基抗高过载炸药损伤特性[J].含能材料,2017,25(12):991~996
作者单位E-mail
姜夕博 西安近代化学研究所, 陕西 西安 710065 jiangxibonj@163.com,wangxf_204@163.com 
金朋刚 西安近代化学研究所, 陕西 西安 710065  
王建灵 西安近代化学研究所, 陕西 西安 710065  
杨建 西安近代化学研究所, 陕西 西安 710065  
王晓峰 西安近代化学研究所, 陕西 西安 710065 wangxf_204@163.com 
摘要点击次数: 497
全文下载次数: 528
HTML 查看全文   查看/发表评论   下载PDF阅读器

更多>>

更多>>

分享按钮