介绍了在大型有限元软件 ANSYS中 ,单向拉伸有限裂纹试样的各项断裂参量的计算方法。通过标准算例分析 ,ANSYS的计算结果与 EPRI估算公式的计算结果基本相近 ,此方法为断裂参量的计算提供了一种新的途径 The calculation method of various fracture parameters of uniaxial tensile specimens with finite crack is introduced in the large finite element software ANSYS. Through the analysis of standard examples, the calculation results of ANSYS and EPRI estimation formulas are basically similar, which provides a new way for the calculation of fracture parameters