Research Article
The Pore Collapse “Hot-Spots” Model Coupled with Brittle Damage for Solid Explosives
Table 1
Material parameters for PBX-9404.
| | Material parameter | value |
| | Initial density, (g/cm3) | 1.84 | | Yield strength, (GPa) | 0.2 | | Shear modulus, (GPa) | 4.54 | | Viscosity, (GPa*s) | 0.1 | | Initial temperature, (K) | 300 | | Specific heat, (GPa*cm3/g/K) | | | Frequency factor, (s−1) | | | Activation energy, (GPa*cm3/mole) | 220.5 | | Initial inner pore radius, (m) | 10.0 | | Initial external pore radius, (m) | 46.416 | | Initial crack radius, (m) | 10.0 | | Fracture toughness, (GPa*) | | | Terminal speed for crack growth, (cm/s) | | | material constant, | 10 |
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