Design of Experiment and Numerical Analyses of Impacts on Concrete

Design of Experiment and Numerical Analyses of Impacts on Concrete

This project aimed to develop a system that elucidates the impacts of collision on concrete. The system will be used to measure five significant items, which are:(1) the velocity of blocks before collision,(2) the position of blocks,(3) the velocity of block during collision,(4) the image data for velocities, positions, strains and displacements of blocks, and(5) To ensure the feasibility of the design of experiment for the system, test experiments have been carried out. The proposed system can be divided into two parts. The first part is a simple pendulum device. This device is composed of cantilever steel frames and cables. The second part is a quick-release system, which is made of a quick-release device, a cable, and steel frames. The measurement devices include speedometers, laser measurement system, infrared gun(to measure distance), accelerometer, and high-speed camera. From the comparison of the analytical solution and the conducted experiments, results are found to be in good agreement.