摘要
采用最新的ＮＯＶＥＬ９１８－２８Ｌ红宝石激光器，在国内首次正式建立了三维模型爆炸加载脉冲全息干涉实验系统，利用全息干涉法记录了大理石模型中爆炸应力波所引起的表面位移的直观全场信息．根据拍摄的动态全息干涉条纹图测定了模型材料的动态参数，研究发现：岩石表面集中药包爆炸加载时，Ｒ波是起决定作用的波系，表面位移的主要分量是离面位移和径向位移；小药量爆炸引起的表面振动随药包埋深的增加而减弱．
A holographic interferometry test system for explosive loading on a 3D model was set up for the first time in China by use of the latest NOVEL918-2BL ruby laser.The full field data of surface displacements of marble samples were recorded by holographic interferometry.Based on the holographic fringe patterns the dynamic performance parameters of rock samples were determined.It was found that when the explosive is detonated on the surface the Rayleigh wave predominates,the main components of surface displacement are vertical and radial displacements.The surface vibration induced by small charge decreases with the increase of the burial depth of the charge.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1996年第2期168-172,共5页
Journal of China Coal Society
基金
国家自然科学基金
煤炭科学基金
关键词
脉冲全息干涉法
三维模型
应力波
岩石爆破机理
pulsed holographic interferometry,3D model,dynamic displacement field,stress waves
