摘要
混凝土作为一种典型的准脆性材料,其力学特性和破坏过程非常复杂。利用颗粒流软件PFC2D,模拟了混凝土的单轴压缩破坏试验,分析了模型细观参数对混凝土宏观力学特性的影响,并对其破坏形态进行了研究。分析表明:试件的峰值强度随着平行黏结强度、摩擦系数、平行黏结半径的增大而增加,随平行黏结刚度的增加而降低。
Concrete is a typical quasi-brittle material,whose mechanical behavior and rupture process are very complex.An uniaxial compression test model is established using particle flow code in 2 dimensions（PFC2D） to analyze macroscopic mechanical properties of concrete influenced by microscopic parameters of model.And a general study on the failure form of the concrete is carried out.
出处
《工程建设与设计》
2011年第8期67-70,共4页
Construction & Design for Engineering
关键词
混凝土
颗粒流
应力-应变曲线
数值模拟
concrete
particle flow
stress-strain curve
numerical simulation
