NUMERICAL SIMULATION OF FORMATION OF HIGH-SPEED COMPACT METAL COMPONENTS
S. S. Sokolov, A. A. Sadovoy, T. I. Chaika
VANT. Ser.: Mat. Mod. Fiz. Proc 2004. Вып.3. С. 54-61.
The influence of damage mechanisms on the process of forming compact high-speed components has been studied. The earlier developed kinetic model of dynamic damages considering the damages both on unloads and during shear strains and describing the compacting processes sometimes taking place in the damaged materials has been used for the mathematical model. Numerical simulations were carried out by 2D DMK code for the hemisphere-cylinder type structure with an aluminum shell and the structure in the form of a slightly concave copper liner. It is shown that local damage zones in the head part are formed in the aluminum liner. For the copper liner, we didn't manage to achieve the agreement between the calculated damage zones and the data of experiments with the use of the chosen parameters of shear failures.
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