ESTIMATION OF ELASTIC PROPERTIES OF CEMENT BASED MATERIALS AT EARLY AGE BASED ON A COMBINED NUMERICAL AND ANALYTICAL MULTISCALE MICROMECHANICS APPROACH
A multiscale approach based on analytical homogenization schemes combined with numerical homogenization is proposed.The analytical schemes are used to estimate the homogenized behaviour of cement paste and mortar.The numerical simulations are performed at the aggregate scale so that the effects of the form of the aggregate can be accurately evaluated.The scales of interest are the cement paste, the mortar (with the ITZ) and concrete (or coarse aggregate) scale.The cement paste and mortar are homogenized using generalized self-consistent and Mori-Tanaka schemes.Finally the concrete scale is assessed by finite element simulations with 3D generated microstructures where the aggregates consisting in polyhedrons obtained by a Voronoi space decomposition are randomly distributed in the mortar matrix.
Tulio Honorio Benoit Bary Farid Benboudjema
CEA,DEN,DPC,SECR,Laboratoire dEtude du Comportement des Bétons et des Argiles,F-91191 Gif-sur-Yvett CEA,DEN,DPC,SECR,Laboratoire dEtude du Comportement des Bétons et des Argiles,F-91191 Gif-sur-Yvett LMT-ENS Cachan,CNRS/UPMC/PRES UniverSud Paris,Cachan Cedex,France
国际会议
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)
北京
英文
236-243
2014-10-12（万方平台首次上网日期，不代表论文的发表时间）