摘要
在文献［２］的基础上，用ＳＱＣＥ理论￣［１］研究了二维裂纹体任意尺寸对应力强度因子（ＳＩＦ）的影响，进行了大量的数值计算，并根据计算出的尺寸影响系数进行了二元函数拟合，给出了二元尺寸影响函数，从而解决了二维中心裂纹板受单向均匀拉伸下任意尺寸的ＳＩＦ的计算。
On the basis of Ref. [2], the influence of any size of the plates with a central crack on stress intensity factors (SIFs) is studies by the method of SQCE[1] in this paper,and a large quantity of calculations are carried out. Based on the computation results,the 2-D size influence function of SIFs is fitted. From this, the problem of the calculation of SIFs for plates of any size with a central crack is solved.
