The SIF and its correction factor of the transverse surface semi-elliptic crack of a photoelastic axle are tested and studied with the method of three dimensional photo-elastics.
通过三维光弹实验测定了轴表面横向半椭圆裂纹的应力强度因子（SIF），并计算了与光弹轴裂纹几何及当地应力相对应的无限大体的SIF，从而求得SIF修正系数。
Being a more serious defect, transverse crack on slab surface is very harmful to slab production and quality.
铸坯表面横向裂纹是连铸坯较严重的缺陷，其对铸坯的生产和质量危害很大。
It was considered that transverse cold cracking on surface due to cold shuts in ingots was the root cause of the crack defects.
指出铸锭中的冷隔形成的表层横向冷裂纹是最终形成裂纹缺陷的根本原因。
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