Abstract
We develop a multi-scale multi-physics analysis method for mass concentration diffusion and deformation in quasibrittle materials such as concrete materials, with a view to the evaluation of time-series environmental deterioration. The structural failure in micro-structures is evaluated by a simple damage model and analyzed by the voxel finite element method. The application of the homogenization method enables us to evaluate the change over time in macroscopic elastic and diffusion properties. First, we formulate the multi-scale mass concentration problem and the multi-scale deformation problem by applying the homogenization theory and present the weak-coupling analysis procedure. Secondly, we briefly summarize the modified voxel finite element method for the representation of microscopic damage such as cracks. Finally, several numerical examples are presented to demonstrate the capability of proposed method.
