摘要
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。结果表明，修正系数值相对于裂纹深度呈对称分布趋势，因而仅与裂纹几何因素有关。据此特性，可用所得修正系数估算工程轴件表面横向半椭圆裂纹的ＳＩＦ。
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.It is showed that the correction factor is symmetric to the crack depth and therefore only dependent upon the geometric factors of the crack,through which,the SIF of a engineering axle can be evaluated
出处
《机械工程材料》
CAS
CSCD
1994年第5期20-24,共5页
Materials For Mechanical Engineering
