介绍了一种求解多孔边裂纹板应力强度因子的解析方法,首先利用复变函数的性质求解应力函数,然后结合复变应力函数的近似迭加法计算应力强度因子。该方法在计算过程上相比传统的一些解析方法简化了许多繁琐的步骤,通过与有限元结果的比较可知,解析计算结果精确、可靠。这种求解应力强度因子的解析方法能够很好地应用于无限板上共线任意分布的多孔边裂纹结构,在工程断裂问题中有潜在的应用价值。
An analytical method for SIF calculation on infinite plate containing multiple holes was introduced herein.Complex function was applied to calculate the complex stress functions and the superposition method was used to deal with SIF problems on multiple holes,which simplified many complicated steps comparing with the traditional analytical methods.In addition,comparing with the finite analysis results,the analytical results are accurate and reliable.The method can be applied to solve SIF problems on infinite plate containing collinear multiple holes with random distribution and can availably be popularized in engineering fracture problems.