混凝土静态破碎的物理试验与数值试验

本文在对混凝土模型静态破碎进行物理试验的基础上应用RFPA2。软件系统对其进行了数值模拟，物理试验并口数值模拟结果表现为良好的一致性。通过数值模拟可以观察到物理试验难以观测到的裂纹的萌生、扩展直至贯通的过程。在此基础上对双孔混凝土静态破碎进行了数值试验，得到相同条件下使孔问主裂纹贯通的经济合理孔距，为混凝土等静态破碎施工中优化布孔提供了一种有效的方法。

Physical experiment and numerical tests of soundless cracking on concrete

Based on the physical experiment,the author use RFPA~(2D) system finished the numerical simulations on the failure of concrete model to investigate the effect of SCA (Soundless Cracking Agent).The tests of numerical simulations show the better similar results of physical experiment.The numerical results reproduced the whole failure process of the crack initiation,propagation,and coalescence.Then some numerical tests on the models with two holes are finished,the more economic distance between the holes in same conditions are found.So an effective way to optimize design for soundless crack engineering is provided.