1. PENZA STATE UNIVERSITY Penza, Russia
MODELING EXPLOSIVE WELDING BY USING THE LS-DYNA SOFTWARE
Speaker: as. prof. IRINA LOS

2. BIMETAL MATERIALS stainless steel - carbon steel titanium - steel
copper- aluminium
tantalum - aluminium
zirconium – stainless steel
stainless steel – Ni-Cr super alloy
titanium - copper
molybdenum – copper
niobium - titanium

3. MATHEMATICAL SIMULATION
The analysis of process and formulation of a problem
The metallic material model selection
The explosive model selection
The choice of equations of state
The determination of the geometry of parts
The program design
The analysis of results

4. MATERIAL MODELS EQUATION OF STATE
The explosive
model High Explosive Burn
equation of state JWL
(Jones – Wilkinson - Lee)
The copper plates
model Johnson - Cook
equation of state Gruneisen
The air
vacuum model

5. DENSITY DISTRIBUTION the impact of two copper plates

6. KINETIC ENERGY OF FRYER PLATE

7. CONTOURS OF PRESSURE

8. CONTOURS OF EFFECTIVE STRESS

9. RESULTANT VELOCITY OF FRYER PLATE

10. EXPLOSIVE WELDING MODEL FOR COMPOSITE

11. DEFORMATION PROCESS MODELING

12. PENZA STATE UNIVERSITY Penza, Russia
Thank you for your attention