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介绍了一种内部随机均匀分布微裂纹的数值模拟晶界破坏抵抗模型 .利用该模型对耐热合金钢SUS30 4高温蠕变疲劳内部微裂纹的萌生、扩展、合体全过程进行了数值模拟和分析 ,模拟结果与实验结果相吻合
A numerical simulation of grain boundary damage resistance model with uniformly distributed microcracks inside is introduced.The numerical simulation and analysis of the initiation, propagation and whole process of internal microcracks at high temperature are carried out by using this model. The simulation results are consistent with the experimental results