JOB-9003炸药热冲击损伤的超声波检测  

Experimental Study on the Thermal Shock Damage of Explosive by Ultrasonic Testing

作　　者：张伟斌[1] 田勇[1] 温茂萍[1] 郝莹[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《含能材料》2004年第2期85-88,共4页Chinese Journal of Energetic Materials

基　　金：中国工程物理研究院基金资助(20030105)

摘　　要：观察了JOB 9003炸药在水浴法热冲击试验中发生的损伤及变化过程,研究了超声特性参数(增益)与炸药热冲击损伤因子的关系,曲线关系预示出炸药存在预损伤。研究结果表明超声波检测技术及装置适合于JOB 9003炸药热冲击损伤及其演变的实验测试,可为研究炸药在外载条件下的动态响应提供一项新的实验技术。The paper presents an experiment on the thermal shock damage of JOB-9003 and its evolution course in water under different temperatures (from 2 ℃ to 24 ℃,26 ℃,28 ℃,30 ℃,32 ℃) by using digital ultrasonic testing system. The intensity of the different damage accumulation degree (damage factor) has been tested. A fitted curve relationship between ultrasonic characteristic parameters (especially ultrasonic gain) and the damage accumulation degree of JOB-9003 explosives was found. It′s measured that the threshold (D_C) of the damage of JOB-9003 explosives is 0.223. The results prove that ultrasonic testing method is reliable to study the thermal shock damage of JOB-9003 and its evolution course,and provide the technique supports on studying dynamic state response of explosive to different load conditions.

关 键 词：声学 JOB-9003炸药 热冲击 损伤 超声波检测 复合材料 

分 类 号：TQ560[化学工程—炸药化工]