LAUSR

Abstract In this paper, the effects of the chemical composition of the fluid are studied on the mechanical behaviors of hydrogels via static and dynamic experiment. In particular, the dynamic stress-strain curves of hydrogels are obtained via the split Hopkinson pressure bar (SHPB), and static compressive experiments are carried out. After that, the static compressive stress-strain curves are compared with the dynamic ones, and the effects of the strain rate and the water content of the hydrogels on their structural response are then discussed in details. Finally, the hydrogels are immersed in a FeCl3 solution to study the effect of the FeCl3 solution on the static and dynamic strength of the hydrogels. It is concluded that the strength of the hydrogels increases for hydrogels immersed in the FeCl3 solution.