1. EXPLOSIVE WELDING OF MULTILAYER PACKAGES: NUMERICAL SIMULATION
Penza State University
I. S. Los, A. Yu. Muizemnek, and E. A. Zhuravlev

2. Object of investigations
Purpose
Developing simultaneous explosive welding of multilayer package technology using numerical simulation.
Object of investigations
Deformation process in interlayer boundaries in the time of simultaneous explosive multilayer package explosive welding.

3. Multilayer materials production methods
Layerwise explosive welding
Simultaneous explosive welding of multilayer package
Combining of explosive welding and roll welding

4. Simultaneous multilayer material explosion welding schema

5. Problems
Different collision conditions in different interlayer boundaries
Necessity to obtain uniform strength in all joints
Necessity to do many experiments

6. Three-layers material model Explosion welding schema

7. Model description
Material models Stainless steel 18-10, carbon steel MAT_JOHNSON_COOK with EOS_GRUNEISEN equation of state Explosive MAT_HIGH_EXPLOSIVE_BURN with EOS_JWL equation of state Empty space MAT_VACUUM

8. Mesh description
3D solid, 8 nodes element Element size = 0.01mm

9. Explosion welding of three-layers material. Numerical simulation.

10. Resultant velocity

11. Pressure

12. Collision angles

13. Experiment results
Microstructure of explosive welded three layers package

14. Thank you for attention!