摘要
研究了不同拉伸速率(20 mm/min、100 mm/min、200 mm/min)、不同测试温度(-50℃、-40℃、-30℃、-20℃、0℃、20℃、50℃)对改性双基推进剂极限抗拉强度σm和极限应变εm的影响,并获得了其相应主曲线。结果表明,随着温度升高,推进剂极限抗拉强度σm减小,极限应变εm增大;相同温度时,随着拉伸速率的增大,推进剂的极限抗拉强度σm提高。主曲线的描绘为该类推进剂的力学性能研究提供了有力的分析方法。
The effects of different tensile rate（20 mm /min,100 mm /min,200 mm /min）,test temperature（-50 ℃,-40 ℃,-30 ℃,-20 ℃,0 ℃,20 ℃,50 ℃） on the ultimate tensile strength and the ultimate strain of the CMDB propellant were investigated,and the relevant master curves were received.The results show that,the ultimate strain is increased with the temperature,but the ultimate tensile strength is decreased.At the same temperature,the ultimate strain is increased with the tensile rate.The master curves provide an analysis method for the research of mechanical properties of the CMDB propellant.
出处
《战术导弹技术》
2013年第3期55-58,共4页
Tactical Missile Technology
