Abstract
In this paper a useful and special constitutive model of rock material suitable for the numerical study of stress waves induced by underground explosion is discussed and developed. The influences of microdefect (microcrack and micropore) on the nonlinear behavior of rock are described by reduction coefficient and porosity evolution. Strain hardening and damage softening are taken into account by different yield surface at different deformation stage. Finally, numerical simulations are carried out for a typical underground nuclear explosion and the results are compared to those measured in the field or published in other papers. The achievement of the numerical simulation shows that the model developed in the paper is reasonable and effective.
| Original language | English |
|---|---|
| Pages | 824-830 |
| Number of pages | 7 |
| State | Published - 2003 |
| Event | Proceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials - Guilin, China Duration: Oct 15 2003 → Oct 18 2003 |
Conference
| Conference | Proceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials |
|---|---|
| Country/Territory | China |
| City | Guilin |
| Period | 10/15/03 → 10/18/03 |
Scopus Subject Areas
- General Engineering
Keywords
- Constitutive model
- Crack
- Damage
- Porosity
- Rock
- Underground explosion