A Comparative Study for the Mesoscale Models of Concrete

Abstract This paper provides an overview of mesoscale models used to simulate concrete behavior. A comparative analysis was carried out using mesoscale models with two dimensions. The impact of material type on three tests: the indirect tensile splitting test, the three-point bending test, and the direct tensile test was examined in the study. Additionally, a comparison is made between the findings obtained with and without the application of ITZ and the analysis results obtained from the direct tensile test. The results showed that the fixed crack model had higher stiffness than isotropic damage model in both direct tensile test, and three-point bending test. In indirect tensile splitting test, only fixed crack model gave meaningful results. The models with ITZ had most of the cracks in ITZ rather than in the mortar.