Abstract
The second-order manifold method (MM) is used to simulate the dynamic Hopkinson spalling process of rock under shock loading through introducing a criterion of crack initiation and crack growth. The attenuation of stress waves and the spalling process caused by a reflected tensile stress wave are reproduced. The simulation results are compared with theoretical analysis. The thickness of the formed scab and its velocity obtained from the simulation are in good agreement with the theoretical values. MM has proven to be an effective method in simulating the dynamic failure process of materials under shock loading and exhibits some advantages to conventional numerical methods in the study of dynamic failure and related issues.
| Original language | English |
|---|---|
| Pages (from-to) | 353-358 |
| Number of pages | 6 |
| Journal | Gaoya Wuli Xuebao/Chinese Journal of High Pressure Physics |
| Volume | 20 |
| Issue number | 4 |
| Publication status | Published - Dec 2006 |
Keywords
- Hopkinson dynamic spalling
- Manifold method
- Numerical simulation
- Shock loading