摘要
基于混凝土材料内部结构的非均质性,建立了混凝土三相介质随机骨料模型,在此基础上对所建立的模型进行了数值模拟分析,结果表明,内部结构的不同对试件内部裂纹的形态和分布特点具有较显著的影响,而对试件整体的强度影响不大,进一步证明了分析混凝土材料力学性能时采用随机骨料模型的可行性和合理性。
Based on the non-homogeneity of the micro structure of concrete, the random aggregate concrete model was established, and the numerical simulation was carried out on this model, from the result it can be concluded that the nonhomogeneity of the micro structure have a significant influence on the form, and distribution of the cracks but have little influence on the strength of concrete. It is indicated that the random aggregate is suitable for the concrete analysis.
出处
《电网与清洁能源》
2012年第12期92-98,共7页
Power System and Clean Energy
基金
国家自然科学基金面上项目(50679073)
国家自然科学基金重点项目(90510017)
西安理工大学基金项目(106-211108)~~
关键词
混凝土
细观损伤
随机骨料模型
数值模拟
concrete
micro mechanics damage
randomaggregate model
numerical simulation
