CSMMC

Concrete Structure Multi-scale Multi-physics Computational (CSMMC) Laboratory

	About	Contact Information	Research Activities	Positions	Personnel	Facilities
	Research Activities Today the use of the multi-scale analysis methods for the analysis of concrete structures is, in practice, nearly non-existent. One of the major reasons for that is the high computational cost needed to complete a non-linear multi-scale analysis and the lack of accurate fine-scale models for cementitious materials. The CSMMC laboratory goal is to try to change this reality by suggesting superior multi-scale formulations, which incorporates several multi-scale approaches. The laboratory suggest achieving that using an efficient bridging and information passing technique between the different scales and using a reduced order models, which is expected to reduce the computational cost by several orders of magnitudes while maintaining the desired accuracy. For that purpose we are working now on four different models from the highest in computational time and therefore in accuracy and downward are suggested as follows (see figure below): 1.The most refined model will be a homogenized nonlinear high order model based on the partition of unity method; 2. A less refined level will be a homogenized nonlinear first order model based on the partition of unity method; 3. The next level of refinement will be a homogenized nonlinear reduced order model based on transformation field analysis; and 4. the coarsest (most effective and less accurate) model will be a first-order model based on the classical theory of homogenization.