原文讨论了裂纹形状对准则的影响和准则的适用范围,这两个问题在工程应用上都有意义。我们也想就这些问题提出一些看法,供有兴趣的同志讨论、分析和研究。 本文所用的符号凡和原文相同的,便不再说明。 一、原文提出α_0对断裂准则的影响,这一讨论有一定的实际意义。但原文中的基本公式(3)在 The influence of the shape of cracks on the criteria and the scope of application of the criteria are discussed in the original text. Both of these issues are significant in engineering applications. We also want to put forward some views on these issues for interested comrades to discuss, analyze and study. The symbols used in this article are the same as those in the original text and will not be explained. First, the original proposed α_0 impact on the fracture criteria, this discussion has some practical significance. But the basic formula (3) in the original text is