【摘要】 进行了 JOB- 90 0 3炸药试样的热冲击试验和热冲击前后的超声波特性参量检测试验 ,观察并检测到试样在热冲击试验的不同阶段出现损伤破坏及超声波特性参量的具有一定典型性的变化。试验初步表明 ,初始损伤或裂纹对炸药的力学性能有十分明显的影响 ,超声波特征参量对炸药的损伤及破坏进一步表现出一些可识别的特征更多还原

【Abstract】 Ultrasonic characteristics of JOB 9003 explosive specimens before and after thermal shock tests have been measured. The specimens appear increased damage or destruction at different phases of the tests and some typical variations of ultrasonic characteristics in a degree. The experiment shows that initial damage or crack of explosive significantly influences mechanics of explosive, and some features of ultrasonic characteristics caused by damage or destruction of explosive are destinguished furthermore.更多还原