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本文介绍了一种用栅板剪切干涉法确定应力强度因子的新方法,阐明了该方法的基本原理与实验技术,通过三点弯曲梁确定了Ⅰ型裂纹应力强度因子,实验结果与理论上近似计算结果相符合。
In this paper, a new method for determining stress intensity factor by grid shear interference is introduced. The basic principle and experimental technique of this method are clarified. The stress intensity factor of type Ⅰ crack is determined by three-point bending beam. The experimental results and theoretical The approximate calculation results are consistent.