Abstract
Rubber materials have been used for the relaxation of impact stresses on the collision of steel members. The use of rubber is considered to be very effective for the stress relaxation through investigations on the progressive wave between members, however, the inference does not take the influence of multiple reflections of the incidence wave in the rubber into consideration. This paper disclosed by employing a wave propagation model that the stress relaxation diminishes as the steel member becomes longer, and the results of the model were verified by collision experiments using Hopkinson bar.
