Crush dynamics of square honeycomb thin rubber wall

Previous experimental study has proven that rubber honeycomb claddings with thin rubber core can be used to attenuate the water blast wave impinged onto ship hull. As a theoretical extension, the dynamic crush behavior of the square honeycomb core made by thin rubber wall is investigated in this paper. As the dynamic effects play a significant role in the behavior of core, several distinct dynamic effects are analyzed including inertial resistance, nonlinear elasticity, inertial stabilization of webs against buckling, and material viscosity. The influences of the initial imperfection shape and amplitude are discussed too. These effects are illustrated and quantified with the aid of detailed numerical calculations. Some preliminary attempts are also made on the theoretical prediction on the stress wave transmission process.