A parametric study of the meso-scale modelling of concrete subjected to cyclic compression

被引：7

作者：

Rempling, Rasmus ^{[2
]}

Grassl, Peter ^{[1
]}

机构：

[1] Univ Glasgow, Dept Civil Engn, Glasgow G12 8QQ, Lanark, Scotland

[2] Chalmers, S-41296 Gothenburg, Sweden

来源：

COMPUTERS AND CONCRETE | 2008年 / 5卷 / 04期

关键词：

concrete; fracture; cyclic loading; compression; damage mechanics; plasticity; Meso-scale;

D O I：

10.12989/cac.2008.5.4.359

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The present parametric study deals with the meso-scale modelling of concrete subjected to cyclic compression, which exhibits hysteresis loops during unloading and reloading. Concrete is idealised as a two-dimensional three-phase composite made of aggregates, mortar and interfacial transition zones (ITZs). The meso-scale modelling approach relies on the hypothesis that the hysteresis loops are caused by localised permanent displacements, which result in nonlinear fracture processes during unloading and reloading. A parametric Study is carried out to investigate how aggregate density and size, amount of permanent displacements in the ITZ and the mortar, and the ITZ strength influence the hysteresis loops obtained with the meso-scale modelling approach.

引用

页码：359 / 373

页数：15

共 25 条

[1]

[Anonymous], 1991, ACM Computing Surveys

[2]

[Anonymous], 2006, Microporomechanics

[3] Fracture analyses using spring networks with random geometry [J].