By introducing proper Westergaard’s stress function,the stress fields for mode Ⅰ and Ⅱ problems of periodic cracks in orthotropic composites were analyzed using the complex variable function method and approach of undetermined coefficients.
通过引入适当的Westergaard应力函数,采用复变函数方法和待定系数法对含周期性裂纹正交各向异性纤维增强复合材料板的Ⅰ型、Ⅱ型问题中裂纹尖端附近的应力场进行了力学分析。
参考来源 - 含周期性裂纹正交各向异性板平面问题的应力场分析·2,447,543篇论文数据，部分数据来源于NoteExpress
In this article a solution is found of the stress intensity factors in five cases. The solution is based on Airy stress function and the method of weighted residuals.
求解了五种情况的应力强度因子，采用的方法是艾雷应力函数和加权残数法。
"When people are sleep deprived, there are higher levels of stress hormones in their bodies, which can decrease immune function." says Doctor Felice of Northwestern University in Chicago.
芝加哥西北大学的费利斯博士说：“当人们睡眠不足时，他们体内的压力荷尔蒙水平会升高，这会降低免疫功能。”
When people are sleep-deprived, there are higher levels of stress hormones in their bodies, which can decrease immune function.
当人们睡眠不足时，他们体内的应激激素水平会升高，造成免疫功能下降。
应用推荐