实时全息干涉计量用于研究岩石材料正向受压形变  

Application of real-time holographic method to the distortion of the concrete study

作　　者：张永安[1] 吕晓旭[1] 钟丽云[1] 佘灿麟[1] 熊秉衡[1] 

机构地区：[1]昆明理工大学激光研究所,昆明650051

出　　处：《激光杂志》2003年第3期56-57,共2页Laser Journal

摘　　要：采用实时全息干涉计量摄影系统 ,记录岩石试件正向受压下干涉条纹的形变规律。配合声发射定位测量 ,可以测定岩石试件微裂纹扩展时间、位置和强度。初步的实验已经观察到干涉条纹是在空间定域的 ,微裂纹的扩展与局部应力的集中有关 ,且其延伸方向是应力场高梯度变化的方向等 。ln order to find the relationships between the distortion rule of the rock and its surrounding stress field,a real-time optical holographic setup is used to record the rock and the variation of the sample,the wave-forms of ultrasonic emission stimulated by the micro-crack are recorded by a transient auto wave-form recorded to determine the time,location and intensity of the actions of micro-cracks.The experiment has brought some phenomena worthy of the study.This method provides a useful experimental approach to study brittleness materials

关 键 词：实时全息干涉计量摄影系统 岩石材料 正向受压 干涉条纹 形变规律 

分 类 号：TU521.2[建筑科学—建筑技术科学] TB877[一般工业技术—摄影技术]