MECHANICAL MODELING OF CHEMO-MECHANICAL COUPLING BEHAVIOR OF LEACHED CONCRETE

摘要：

　　Based on the analysis and experimental results obtained from triaxial strain and stress relationships of leached concrete, an elastoplastic constitutive model coupled with leaching damage was formulated.Two damage parameters dm, and dc, which refer to the mechanical and chemical damage respectively, were proposed in this paper.The plastic mechanism was related to deviatoric shearing and the leaching damage was identified as relative variation of porosity.Both elastic and plastic properties were effect by leaching damage.From the simulating results, it seemed that the proposed model was able to describe the main feature of mechanical behavior of cementitious materials in sound and degraded states.

作者: Bei Huang Chunxiang Qian Shao Jianfu

作者单位: School of materials Science and Engineering,Nanjing Tech University,China;Laboratoire de Mécanique d School of materials Science and Engineering,Southeast University,China Laboratoire de Mécanique de Lille,Polytech-Lille,France

会议类型: 国际会议

会议名称: The Fourth RILEM International Symposium on Concrete Modelling (CONMOD 2014)(第四届RILEM混凝土材料建模国际会议)

会议地点: 北京

会议语种:英文

页码: 505-511

在线出版日期: 2014-10-12（万方平台首次上网日期，不代表论文的发表时间）