Analysis of Dynamic Coefficient in Explosive-Induced Deep Drawing
In the observed case there will be presented a process of determining dynamic coefficient both based on existing theoretic equations for determination of required pressure, and based on experimental results of testing. As a matter of fact, a dynamic coefficient is ratio between dynamic and static pressures and will be deduced from conditions of the equal deformation degree on the occasion of explosive-induced deep drawing of sphere-bottomed sheet. In the observed case a sphere-bottomed sheet, with 200 mm diameter and steel _4580 (DIN X5CrNi 189), was deep drawing by means of explosion. Explosive’ s detonation velocities were 2994 m/s and 6105 m/s. The used explosive was “ Vitezit 20” , while medium for energy transmission was water.