Impact of cement composite filled steel tubes: An experimental, numerical and theoretical treatise

This paper presents a combined experimental, numerical and theoretical study on the transverse impact behavior for ultra lightweight cement composite (ULCC) filled steel pipe structures. The drop weight impact test investigates the impact behavior of the pipe specimens. The numerical simulation using the non-linear finite element software LS-DYNA agrees closely with the experimental data. Meanwhile, this study develops a theoretical method to predict the impact response for cement composite filled pipes. Compared to the experimental results, the theoretical method provides reasonable predictions on the impact force and the global displacement response for the cement composite filled pipe specimens.