Simulation of explosive welding using the Williamsburg equation of state to model low detonation velocity explosives

摘要: Abstract Explosive welding is a process for producing bi-metallic plates and tubes. Whilst well established it has been essentially an empirical process. In most operations, low-speed explosives such as ammonium nitrate fuel oil (ANFO) mixtures, are used. Such have low velocity of detonation with appreciable zone. The usual Jones–Wilkins–Lee equation state (EOS) not valid. A more representative EOS the Williamsburg EOS. Recent work to numerically model described. notable advance use finite difference engineering package AUTODYN Williamsburg-type ANFO explosive perlite mixtures. this work, was coded subroutine in software which then used simulate aspects computed results were validated by trials. phenomenon jetting interfacial waves usually observed successfully reproduced.