TY - JOUR
TI - Simulation of changes in temperature and pressure fields during high speed projectiles forming by explosion
AU - Marković Miloš
AU - Milinović Momčilo
AU - Jeremić Olivera M
AU - Jaramaz Slobodan S
JN - Thermal Science
PY - 2016
VL - 20
IS - 5
SP - 1741
EP - 1752
PT - Article
AB - The Research in this paper considered the temperatures fields as the  consequently influenced effects appeared by plastic deformation, in the  explosively forming process aimed to design Explosively Formed Projectiles  (henceforth EFP). As the special payloads of the missiles, used projectiles  are packaged as the metal liners, joined with explosive charges, to design  explosive propulsion effect. Their final form and velocity during shaping  depend on distributed temperatures in explosively driven plastic deformation  process. Developed simulation model consider forming process without metal  cover of explosive charge, in aim to discover liner’s dynamical correlations  of effective plastic strains and temperatures in the unconstrained detonation  environment made by payload construction. The temperature fields of the  liner’s copper material are considered in time, as the consequence of  strain/stress displacements driven by explosion environmental  thermodynamically fields of pressures and temperatures. Achieved final  velocities and mass loses as the expected EFP performances are estimated  regarding their dynamical shaping and thermal gradients behavior vs.  effective plastic strains. Performances and parameters are presented vs.  process time, numerically simulated by the Autodyne software package.  [Projekat Ministarstva nauke Republike Srbije, br. III-47029]