爆炸复合界面波的形成机理

MECHANISM OF WAVE FORMATION AT THE INTERFACE INEXPLOSIVE WELDING

Some of the main progress on the investigation of the mechanism of the wave formation in explosive welding at the Institute of Mechanics is introduced and others' previous works are reviewed in this paper. Our systematic experiments and analysis do not substantiate the theory of wave formation based on Karman vortex-street analogy or Helmholtz instability. On the contrary they show that material strength insensitive to strain rate plays an important role. A simple hydroplastic model is presented to explain the main features regarding the interfacial wave formation and to estimate the magnitude of wave length. The result is in broad agreement with experiment.