MECHANISM OF WAVE FORMATION AT THE INTERFACE IN EXPLOSIVE WELDING

Some of the main progress on the investigation of the mechanism of the wave formationin explosive welding at the Institute of Mechanics is summarized and otters’previous works are re-viewed.Our systematic experiments and analysis do not substantiate the theory of wave formationbased on Karman vortex-street analogy or Helmholtz instability.On the contrary,they show that materi-al strength insensitive to strain rate plays an important role.A simple hydro-plastic model is presentedto explain the main features regarding the interracial wave formation and to estimate the magnitude ofwave length.The result is in broad agreement with experiment.