【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 ,这种方法的成功将为脆性材料的损伤研究提供一种可视化的研究手段更多还原

【Abstract】 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更多还原