本文利用权函数法,给出了集中力加载时内外壁含1～2条径向裂纹圆环试样K_1的数值解及其拟合表达式。与某些已有解比较,本文给出的解范围宽、精度高,可用于模拟试验中的定量计算。圆环试样加工和试验方便易行,且不破坏圆形结构,可用于研究残余应力影响及残余应力强度因子的实验标定,有明显的实用价值。 In this paper, using the weight function method, the numerical solution and its fitting expression for K_1 sample with radial cracks on the inner and outer walls of the inner and outer walls are given. Compared with some existing solutions, this paper gives a wide range of solutions and high precision, which can be used for quantitative calculation in simulation experiments. Ring sample processing and testing convenient and easy, and does not destroy the circular structure, can be used to study the impact of residual stress and residual stress intensity factor experimental calibration, has obvious practical value.