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本文用光弹法测定Ⅴ型切口尖端、应力强度因子。结果表明,等色线条纹数据应在y方向及其邻域测量。建议光弹图象放大50倍以上,并按文中的(4)式计算K_I。
In this paper, Ⅴ-type incision tip and stress intensity factor were determined by photoelastic method. The results show that the isochromatic line stripe data should be measured in the y direction and its neighbors. Proposed photoelastic amplification of more than 50 times, according to the text (4) Calculate K_I.