PENZA STATE UNIVERSITY PENZA STATE UNIVERSITY Penza Penza , , Russia Russia MODELING EXPLOSIVE WELDING BY MODELING EXPLOSIVE WELDING BY USING THE LS-DYNA SOFTWARE USING THE LS-DYNA SOFTWARE Speaker: Speaker: as as . . p p rof rof . . IRINA LOS IRINA LOS
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PENZA STATE UNIVERSITYPENZA STATE UNIVERSITY PenzaPenza, , RussiaRussia
MODELING EXPLOSIVE WELDING BY MODELING EXPLOSIVE WELDING BY USING THE LS-DYNA SOFTWAREUSING THE LS-DYNA SOFTWARE
Speaker: Speaker: asas.. pprofrof.. IRINA LOS IRINA LOS
MATHEMATICAL SIMULATIONMATHEMATICAL SIMULATION The analysis of process and formulation of a The analysis of process and formulation of a
problem problem The metallic material model selection The metallic material model selection The explosive model selection The explosive model selection The choiceThe choice ofof equations of stateequations of state The determinationThe determination of the geometry of parts of the geometry of parts The program designThe program design The analysis of resultsThe analysis of results
MATERIAL MODELS MATERIAL MODELS EQUATION OF STATE EQUATION OF STATE
The explosiveThe explosive model High Explosive Burnmodel High Explosive Burn equation of state JWL equation of state JWL (Jones – Wilkinson - Lee)(Jones – Wilkinson - Lee)
The copper platesThe copper plates model Johnson - Cook model Johnson - Cook equation of state Gruneisenequation of state Gruneisen
The airThe air vacuum modelvacuum model
DENSITY DISTRIBUTION DENSITY DISTRIBUTION the impact of two copper platesthe impact of two copper plates