Finite Element Analysis of the Splitting Test

摘要

At the Swedish Defense Research Agency (FOI) applied research is done on how to assess and optimize the protection level of concrete structures subjected to conventional weapon loadings. The modeling of concrete material is a challenging task, especially when the loading is three dimensional and applied at high rates. Two different material models have been used extensively at the Swedish Defense Research Agency and one of them is used in this study. The scrutinized material model has mainly been used for problems involving impact loading and it is here shown to be inadequate for these purposes. This report presents the behavior of this model in a splitting test and a simplified non-local continuum approach applied in a tensile test. Based on two years of experience in this field, the report is concluded with thoughts on what is necessary to better model concrete materials.