Abstract
The progress in experimental determination of mechanical behavior of energetic materials(EMs) at high strain rate based on Split Hopkinson Pressure Bar (SHPB) technique is reviewed. Due to the low Young's modulus, density and wave resistance of EMs, there are some difficulties, such as stress equilibrium and mismatch of wave resistance when SHPB is employed to measure the mechanical properties of EMs. It has been proved by many researchers that to achieve accurate and reliable experimental results, conventional SHPB is no longer applicable. New techniques such as pulse shaper, piezoelectricity crystals can be added to SHPB experiments to solve the problems of stress equilibrium and mismatch of wave resistance, etc. The SHPB technique can also been used to provide experimental results for establishment of material constitutive equation and research on failure pattern or damage evolution. In the end, several future topics are proposed with 44 references.
| Original language | English |
|---|---|
| Pages (from-to) | 5-9 |
| Number of pages | 5 |
| Journal | Huozhayao Xuebao/Chinese Journal of Explosives and Propellants |
| Volume | 33 |
| Issue number | 2 |
| State | Published - 2010 |
Keywords
- Dynamic mechanical behavior
- Energetic materials
- Hopkinson pressure bar
- Materials mechanics
- Research evolution