Archimedes Industrial Technology Co., Ltd. provides dynamic mechanical testing services based on its own equipment, including impact and explosion testing, electromagnetic forming process research services, dynamic compression / tension / torsion / bending / shear testing, initiating explosive device energy and stress testing, J-C constitutive model all parameter testing, calculation and finite element simulation services, which can be tested on site.
1、 Shock and explosion test of stress wave
1. Hopkinson pressure bar test (including bending and high and low temperature test)
2. Hopkinson tension bar test (including high and low temperature test)
3. Hopkinson torsion bar test (including high and low temperature test)
4. Hopkinson shear test (including high and low temperature test)
5. Taylor bar test (including high and low temperature test)
6. Laser driven flyer test
7. Strong magnetic and electric pulse impact test
8. Light gas gun impact test
9. Electromagnetic gun impact test (penetration and flyer test)
10. Electromagnetic ejection test
11. High density powder pressing (including high temperature vacuum pressing)
12. electromagnetic forming process research and processing
13. Research on Electro-hydraulic forming technology and processing of incoming materials
14. Research on electromagnetic riveting technology and processing of incoming materials
15. Research on electric explosion forming technology and processing of incoming materials 16. Research on electromagnetic blanking technology and processing of incoming materials 17. Electrohydraulic explosion test
18. Electromagnetic welding process research and incoming materials
19. Lightning simulation test
20. Large permanent magnet magnetization
21. Dynamic compression / tension / torsion / bending / shear test
22. High temperature hardness test
23. Dynamic hardness test
24. Material dynamic failure test
25. Plastic strain failure model
26. Main stress / strain failure model
27. Random failure model
28. Failure model of tensile pressure
29. Crack softening failure model
30. Johnson cook failure model
31. Grady spallation failure model
32. EMP finite element simulation
2、 Parameter test of dynamic mechanical constitutive model Johnson cook material model and failure model. This model is generally used to describe the strength limit and failure process of metal materials in the environment of large strains, high strain rates and high temperatures. In Johnson cook strength model, yield stress is determined by strain, strain rate and temperature. The formula of JC model is based on experiments. In JC model, flow stress or yield stress can be expressed in the following forms:
Y = [A + Bε^n][1 + Clnε*][1 - T*^m]
Test items: 1) J-C damage model (a \ B \ C \ n \ m); 2) J-C damage parameters (d1-d5); 3) J-C model data calculation and finite element simulation. |
