研究结果表明，ANSYS程序裂纹尖端应力强度因子计算方法的计算精度可以满足工程设计和分析需要。
The results show that the accuracy for crack tip stress intensity factor using ANSYS software is enough for engineering designs and analysis.
结果表明，增加最小二乘拟合项次和合理选择数字图像相关计算子区域和步长大小可以提高应力强度因子计算精度。
The results show that increasing the number of least squares fitting terms and reasonable selection of digital image correlation subset size improve the accuracy of calculated stress intensity factor.
在求解过程中采用无量纲化和等数量级的预处理方法，提高了计算精度，使结果更直观，也便于选择加权因子。
Two pretreatment methods, normalization and equal scale, are used to improve calculating precision so as to make results comprehensible and weighting factors be easily chosen.
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