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运用一个材料破坏过程分析MFPA2D系统,研究了混凝土试件中的裂纹扩展及破坏过程。该方法认为宏观破坏行为是由于具有弹性-脆性特征的细观微元体不断破裂造成的。而造成微元体不断破裂的原因是微元体材料性质的非均匀性。本文根据骨料类型和考虑界面与否,分4种情况模拟了混凝土试件的变形与破坏过程并给出模拟结果及结果分析。
Using a material failure process to analyze the MFPA2D system, the crack propagation and failure processes in concrete specimens were studied. This method considers the macroscopic failure behavior as a result of the continual rupture of meso-scale micro-bodies with elastic-brittle characteristics. The cause of the continuous rupture of the micro-bodies is the heterogeneity of the properties of the micro-bodies. According to the type of aggregate and whether the interface is considered or not, the deformation and failure process of concrete specimens are simulated in four cases and the simulation results and the results are given.