含能材料Issue(5)：674-677,4.DOI:10.3969/j.issn.1006-9941.2014.05.018
压应力对浇注 PBX 装药侧隙缺陷的影响
Influence of Compressive Stress on Annular Gap Defect of Casting-PBX Charge
摘要
Abstract
The influence of compressive stress and Shore hardness on the annular gap defect of a casting polymer bonded explosive ( P-1 explosive)charge after curing was studied using a compression technology. The relationship between stress and strain was an-alyzed. The equation of stress-strain for P-1 explosive compression curing process was obtained. The detection of the explosive was carried out by CT. Results show that the compressive stress is lower than 0. 071 MPa and the compression modulus is 2. 27 MPa when the strain is less than 3. 232% . The values of stress and modulus rise rapidly when the strain is greater than 3. 232% . The Shore hardness of the explosive increases from 3 HA to 59 HA after 5 ~25 h curing. When the initial value of Shore hardness is within 8 ~24 HA and the compressive stress of 14. 2 kPa is imposed on the explosive,the compressive strain is 1. 3% . The auxiliary compression technology can effectively eliminate the annular gap defect of the charge.关键词
材料科学/浇注高聚物粘结炸药/缺陷/力学性能/邵氏硬度/CT 检测Key words
material science/casting polymer bonded explosive/defect/mechanical property/Shore hardness/CT detection分类
军事科技引用本文复制引用
席鹏,王晓峰,郑亚峰,南海,郭昕,杨建钢..压应力对浇注 PBX 装药侧隙缺陷的影响[J].含能材料,2014,(5):674-677,4.基金项目
火炸药基础专项 （）
