A COUPLED ELASTOPLASTIC DAMAGE MODEL FOR CEMENT-BASED MATERIALS DUE TO DESICCATION

摘要：

A coupled elastoplastic damage model is proposed to describe the mechanical behavior of cement-based materials with capillary effect due to desiccation. A particular emphasis is put on the pressure sensitivity of plastic flow and damage evolution when. confining pressure increases. We present first experimental data on a mortar subjected to desiccation tests to display the effect of desiccation on mechanical behavior. Secondly, the model is presented to describe the principle mechanical properties of cement-based materials. Finally, we compare numerical simulations and experimental data to show the capacity of the model to reproduce characteristics of mortar.

作者: D.CHEN I.YURTDAS N.BURLION J.F.SHAO

作者单位: HoHai University, Nanjing 210098, P.R.China Laboratoire de Mécanique de Lille, FRANCE Laboratoire de Mécanique de Lille, FRANCE

会议类型: 国际会议

会议名称: 第二届国际应力-水流-热-化学耦合学术大会(2nd International Conference on Coupled Thermo-Hydro-Mechanical Processes in Geosystems and Engineering：Geoproc2006)

会议地点: 南京

会议语种:英文

页码: 514-519

在线出版日期: 2006-05-22（万方平台首次上网日期，不代表论文的发表时间）