Study on the Role of Internal Friction Angle and Flow Ratio in the Dynamic Response of Normal strength Concrete

Normal strength concrete (NSC) is an engineered commodity that achieves a certain compressive strength, and it is commonly utilized in general formation due to its balanced performance, workability, and small cost. In this work, a numerical research is presented into the complicated interaction of two critical parameters, friction angle and flow ratio, and how they affect the stress-strain behavior of normal strength (NSC) under dynamic load. Abacus, which is a general-purpose finite element (FE) program, was used to build numerical models and was then validated against accessible experimental data from the literature. The resulting finite element models featured material nonlinearities and starting geometric imperfections. A comprehensive parametric study was undertaken to evaluate the variation in stress-strain behavior of normal-strength concrete, which occurred as a result of the impact of friction angle and flow ratio. A comprehensive numerical study was conducted, and the results were carefully examined for numerous hybrid combinations. It was seen that strain is significantly affected by the friction angle, and a smaller friction angle causes more strain or greater deformation. Furthermore, it was revealed that the flow ratio influences peak stress, with greater flow ratios producing higher peak values. The proposed design equations are demonstrated to be reliable and consistent with experimental and computational findings.