Numerical Studies of Explosive Welding by SPH
A particular characteristic of an explosively produced weld is that the profile of the weld interface often has a regular wavy appearance. An effect of detached shock wave and jetting on the metal interface of explosive welding has been shown by SPH (Smoothed particle hydrodynamics). Numerical results show wavy interface which is observed in several experiments. High speed jet between interface and Karman vortex after oblique impact of a flyer plate to a parent plate were major mechanism of explosive welding.
S. Itoh and K. Hokamoto
K. Tanaka "Numerical Studies of Explosive Welding by SPH", Materials Science Forum, Vol. 566, pp. 61-64, 2008