论文部分内容阅读
引入等效表面能密度概念,建立了含微裂纹材料的断裂韧性计算法,并利用动态规划算法研究了微裂纹的分布和取向对材料断裂韧性的影响。根据不同取向微裂纹的统计分布规律,给出了材料断裂韧性和微裂纹标量密度之间的解析式。
The concept of equivalent surface energy density was introduced to establish the fracture toughness calculation method of microcrack materials. The dynamic programming method was used to study the influence of microcrack distribution and orientation on fracture toughness of materials. According to the statistical distribution of microcracks with different orientations, the analytic formula between the fracture toughness and the density of microcracks is given.