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Micro-Mechanics Based Representative Volume Element Modeling Of Heterogeneous Cementitious Materials, Mohammadmehdi Shahzamanian Sichani
Micro-Mechanics Based Representative Volume Element Modeling Of Heterogeneous Cementitious Materials, Mohammadmehdi Shahzamanian Sichani
Electronic Theses and Dissertations
The current work focuses on evaluation of the effective elastic properties of cementitious materials through a voxel based FEA approach. Voxels are generated for a heterogeneous cementitious material (Type-I cement) consisting of typical volume fractions of various constituent phases from digital microstructures. The microstructure is modeled as a micro-scale representative volume element (RVE) in ABAQUS to generate cubes several tens of microns in dimension and subjected to various prescribed deformation modes to generate the effective elastic tensor of the material. The RVE-calculated elastic properties such as moduli and Poisson's ratio are validated through an asymptotic expansion homogenization (AEH) and compared …