STUDY ON THE INTRINSIC MECHANISM OF THE MACRO MECHANICAL CHARACTERISTIC FOR CONCRETE MATERIAL

摘要：

The overall behavior of concrete depends on its meso structures such asaggregate shape,interface status,mortar matrix property and so on.The two mesostructure characters of concrete,bond status of interface and nonlinear property ofmatrix,are considered in focus.And the variational structure principle proposed byP.Ponte Castaneda is adopted to establish the macro-meso constitutive law ofconcrete.By analyzing the constitutive relation above,we find that the brittleness ofconcrete stems from the imperfect interface and the shear dilation property stemsfrom the micro holes contained in concrete.

关键词： imperfect interface mortar matrix nonlinear property variational structure principle brittleness shear dilation property

作者: Q.Zhang X.Z.Xia Z.Li

作者单位: Department of Engineering Mechanics,Hohai University,Nanjing,210098,China Institute of construct,Guangdong University of Technology,Guangzhou,510006,China,Department of Engin Guangdong Province Planning&Design Institute for Water Transportation,Guangzhou,510050,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 844-848

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）