[1]胡雪垚,沈飞,肖玮,等.被动围压下浇注PBX炸药的动态力学性能研究[J].爆破器材,2022,51(01):25-28,34.[doi:10.3969/j.issn.1001-8352.2022.01.005]
　HU Xueyao,SHEN Fei,XIAO Wei,et al.Dynamic Mechanical Properties of a Cast PBX Explosive under Passive Confinement[J].EXPLOSIVE MATERIALS,2022,51(01):25-28,34.[doi:10.3969/j.issn.1001-8352.2022.01.005]
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被动围压下浇注PBX炸药的动态力学性能研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
51
期数:
2022年01
页码:
25-28,34
栏目:
爆炸材料
出版日期:
2022-01-05

文章信息/Info

Title:
Dynamic Mechanical Properties of a Cast PBX Explosive under Passive Confinement
文章编号:
5609
作者:
胡雪垚; 沈飞; 肖玮; 屈可朋
西安近代化学研究所（陕西西安，710065)
Author(s):
HU Xueyao;  SHEN Fei;  XIAO Wei;  QU Kepeng
Xi’an Modern Chemistry Research Institute (Shaanxi Xi’an, 710065)
关键词:
浇注PBX炸药; 被动围压; 应变率; 围压应力
Keywords:
cast PBX explosive;  passive confinement;  strain rate;  confining stress
分类号:
TQ564
DOI:
10.3969/j.issn.1001-8352.2022.01.005
文献标志码:
A
摘要:
为获取一种浇注PBX炸药在被动围压加载下的动态力学性能，采用基于分离式霍普金森杆系统的被动围压试验装置开展了不同应变率（200、600 s－1）下该浇注PBX炸药的力学性能测试，并通过改变围压管壁厚（4、10 mm）分析了围压应力对试样轴向应力的影响。结果表明:随着应变率和围压管壁厚的增加，被动围压下浇注PBX炸药的轴向应力（给定轴向应变）和围压应力（给定轴向应力）均呈增大趋势;且轴向应力随围压应力的增加呈指数增加。拟合得到被动围压下屈服点轴向应力与约束比之间的函数关系，与试验结果吻合良好。
Abstract:
To obtain the dynamic mechanical properties of a cast PBX explosive under passive confinement, mechanical property tests at different strain rates (200, 600 s－1) were conducted by using passive confining device based on split Hopkinson pressure bar system. The influence of confining stress on the axial stress of specimen was analyzed by changing the wall thickness (4, 10 mm) of confining tube. Results show that the axial stress (at given axial strain) and confining stress (at given axial stress) of the cast PBX explosive increase with the increasing strain rate and wall thickness of confining tube. The axial stress increases exponentially with the increase of confining stress. The functional relationship between axial yield stress and confinement ratio under passive confinement can be obtained by fitting, which is in good agreement with the experimental results.

参考文献/References:

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相似文献/References:

[1]王芳芳,王琼,于思龙,等.利用分离式Hopkinson压杆技术研究浇注PBX炸药的老化性能[J].爆破器材,2019,48(03):23.[doi:10.3969/j.issn.1001-8352.2019.03.005]
　WANG Fangfang,WANG Qiong,YU Silong,et al.Application of Split Hopkinson Pressure Bar Technique in Aging Properties Study on Casting Polymer Bonded Explosives[J].EXPLOSIVE MATERIALS,2019,48(01):23.[doi:10.3969/j.issn.1001-8352.2019.03.005]
[2]席鹏,孙培培,郑亚峰,等.典型浇注PBX炸药的准静态压缩力学行为[J].爆破器材,2021,50(02):41.[doi:10.3969/j.issn.1001-8352.2021.02.008]
　XI Peng,SUN Peipei,ZHENG Yafeng,et al.Mechanical Behaviors of Typical Casting-PBX Explosives under Quasi-Static Compression[J].EXPLOSIVE MATERIALS,2021,50(01):41.[doi:10.3969/j.issn.1001-8352.2021.02.008]

备注/Memo

备注/Memo:
收稿日期：2021-05-24
第一作者：胡雪垚(1989-)，女，博士，助理研究员,主要从事弹药动态力学响应及安全性研究。E-mail:595002695@qq.com
通信作者：屈可朋(1983-)，男，硕士，研究员,主要从事弹药动态力学响应及安全性研究。E-mail:155301498@qq.com
更新日期/Last Update: 2022-01-06