切缝药包聚能效应的动光弹试验  

Dynamic photoelasticity experiment on energy cumulative effect of slit charge

作　　者：肖正学[1] 陆渝生[2] 张志程[1] 邱艳宇[2] 

机构地区：[1]西南科技大学,四川绵阳621010 [2]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《解放军理工大学学报（自然科学版）》2005年第5期447-450,共4页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：四川绵阳市科技局资助项目(1999-46)

摘　　要：为了了解切缝药包聚能效应的机理,用动态光弹性法对切缝药包的聚能效应进行了试验,获得了切缝药包爆炸过程中的序列等差条纹图。通过对条纹图的分析,得到了动态应力集中系数,并回归得到了炮孔切缝处剪应力变化的曲线和公式,基本达到了试验的目的。The experiment was conducted for cumulative effectiveness of slit charge based on dynamic photoelasticity method, and the isochromatic fringes graphs in the process of blasting of slit charge were obtained. By analyzing these graphs, the mechanism of cumulative effectiveness of slit charge was investigated, and the dynamic stress concentration factor and the shear stress attenuation curve of the slot on blasthole were also obtained.

关 键 词：切缝药包 聚能效应 动态光弹性 

分 类 号：O384.1[理学—流体力学] E932.4[理学—力学]