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根据对低碳钢解理断裂显微特征分析的结果,以相邻解理系统失配作为裂纹过界扩展的阻力源,建立了解理裂纹过界扩展的临界条件,并根据解理系统的空间分布的统计特性,对裂缝试样的解理断裂行为进行了计算模拟。计算结果与实验结果一致。
Based on the analysis of the microscopic characteristics of the cleavage fracture of low carbon steel, the critical conditions for the expansion of the cleavage crack are established based on the mismatch of adjacent cleavage systems as the resistance source for crack propagation. According to the space of the cleavage system Distribution of the statistical properties of cracked samples cleavage fracture behavior calculation simulation. The calculation results are consistent with the experimental results.