PBX压缩疲劳过程中的红外热像试验研究  

Experimental Study on Infrared Thermal Image for Compressive Fatigue Process of PBX

作　　者：郑雪[1] 李敬明[1] 蓝林刚[1] 周红萍[1] 朱凤云[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：《火炸药学报》2009年第5期18-20,36,共4页Chinese Journal of Explosives & Propellants

基　　金：中物院化工材料研究所所长基金资助(606010924)

摘　　要：采用红外热像仪对PBX块状试样在单轴压缩载荷下的疲劳过程进行了试验研究。结果表明,PBX药柱在压缩疲劳过程中会出现明显的温度升高现象,红外热像技术可实时监测药柱表面温度场的变化;PBX的疲劳温升与疲劳加载的频率、应力及试样状态有很大关联性,最大温升值随着疲劳加载的频率和加载应力幅值的增大而提高。The infrared thermal images study for the compressive failure process of PBX was carried out. The results show that temperature rises obviously during the fatigue experiment, and the infrared thermal image can observe the changes in external temperature field of PBX. The fatigue temperature rise of PBX sample was influenced by frequencies, stress amplitudes and sample forms. The maximum temperature rise in fatigue was elevated with adding of load frequencies and stress range.

关 键 词：固体力学 PBX 红外热像 压缩疲劳 

分 类 号：O346.2[理学—固体力学] TN215[理学—力学]