Title of article :
Statistical homogenization of elastic properties of cement paste based on X-ray microtomography images
Author/Authors :
Huang، نويسنده , , J. and Krabbenhoft، نويسنده , , K. and Lyamin، نويسنده , , A.V.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
11
From page :
699
To page :
709
Abstract :
This paper proposes a statistical multiscale homogenization method to extract effective elastic properties of cement paste on the basis of X-ray microtomography images. The procedure starts at the nanolevel of the C-S-H matrix. Because the highest resolution of current X-ray microtomography is at micrometer scale, C-S-H and CH remains unsegmented. The unresolved hydrated cement is homogenized by a two-step analytical method based on Mori–Tanaka (M–T) scheme. A statistical numerical homogenization method based on the Finite Element Method (FEM) was used to homogenize the elastic properties of cement pastes. Mean elastic properties showed good agreement with experimental results. The proposed multiscale method combines advanced analytical, numerical and experimental methods in a systematical way so that the inputs are phase material properties and X-ray microtomography images only. The novelty of this method is in the avoidance of any subjective decision.
Keywords :
Statistical homogenization , Elastic modulus , Micromechanics , X-ray microtomography , cement paste
Journal title :
International Journal of Solids and Structures
Serial Year :
2013
Journal title :
International Journal of Solids and Structures
Record number :
1400469
Link To Document :
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