Papers by Author: Guo Ping Jiang

Abstract: The process of concrete under symmetric impact was experimentally investigated in the case of primary gas gun and was analyzed .The shock properties of C100 concrete is investigated by gas gun planar impact technique. The manganin pressure gauge is used to measure the pressure-time curves of the samples. The parameters of high-pressure equation are obtained by the numerical simulation. Numerical simulation is a necessary complement to the test. The spall phenomenon is observed by the numerical simulation.

Abstract: The incident wave and transmission wave varying with the time have been obtained by SHPB experiment. The relationship curve for stress and strain of material concrete has also been obtained. The Weibull function is used to describe the damage factor of the concrete. The damage factor of the concrete changing with the time under the impact conditions is obtained by the method of fitting the strain-stress relationship curves.