摘要
应用叠加原理,将Ⅰ型和Ⅱ型裂纹尖端附近区域的应力场进行叠加,从而得到Ⅰ,Ⅱ复合型裂纹尖端附近区域的应力场。在此基础上,依据Mises屈服准则,导出Ⅰ,Ⅱ复合型裂纹尖端的塑性区边界曲线方程。通过一个实例对塑性区的尺寸与形状进行了具体地分析和有意义地探讨。
With the overlape principle, the compound stress field of Ⅰ and Ⅱ model is obtained by overlaping it near Ⅰ and Ⅱ model crack tip. The boundary curve equation of plastic area at the Ⅰ and Ⅱ compound crack tip is given according to Mises yield norm. And an example shows the size and figure of plastic area.
出处
《鞍山钢铁学院学报》
1992年第2期24-28,共5页
Journal of Anshan Institute of Iron and Steel Technology
关键词
叠加原理
复合型
裂纹
塑性区
overlape principle, compound crack, plastic area of crack tip, yield norm
