火炸药学报Issue(2)：86-88,3.DOI:10.14077/j.issn.1007-7812.2015.02.019
温度对粒状发射药动态力学性能的影响
Effects of Temperature on the Dynamic Mechanical Properties of Granular Gun Propellant
张邹邹 1周敬 1杨丽侠 1赵宝明 1刘来东1
作者信息
- 1. 西安近代化学研究所，陕西 西安 710065
- 折叠
摘要
Abstract
To understand the change of dynamic mechanical properties of granular gun propellant under different temperatures,the impact damage state and change in stress curve of gun propellant under temperature of -60-50℃were studied by a drop hammer impact test.Results show that the impact damage state and change in stress curve of gun propellant under different temperatures are very different.When the temperature is lower than -20℃,gun propellant may be broken with high stress peak value and short stress action time.When the temperature is higher than 0℃,the propellant occurs plastic deformation,the stress peak value is low and the stress action time is long. Considering that with the increase of temperature,granular gun propellant gradually changes from brittle fracture to plastic deformation and is not easy to be broken,whereas the cold friable fracture at lower temperature is adverse for the application of gun propellant under the extreme environments.关键词
材料科学/粒状发射药/落锤撞击/动态力学性能/脆性断裂/塑性变形Key words
material science/granular gun propellant/drop-weight impact/dynamic mechanical property/brittle fracture/plastic deformation分类
军事科技引用本文复制引用
张邹邹,周敬,杨丽侠,赵宝明,刘来东..温度对粒状发射药动态力学性能的影响[J].火炸药学报,2015,(2):86-88,3.
