Abstract
The present paper analyzes the possible modes of shear plugging and adiabatic shear plugging in the perforation of metal plates struck by a blunt rigid projectile. The modified ballistic limit and residual velocity with adiabatic shear plugging are further formulated. Further experimental analyses are conducted on the perforations of Weldox E steel plates, in order to discuss the effects of plate thickness and material strength/hardness on the terminal ballistic performance. More experimental evidences confirm the jump of residual velocity at ballistic limit induced by the structural response of plate. With increasing the thickness of plate and the material strength, failure modes of plate may transform from shear plugging to adiabatic shear plugging.
| Original language | English |
|---|---|
| Pages (from-to) | 84-90 |
| Number of pages | 7 |
| Journal | Lixue Xuebao/Chinese Journal of Theoretical and Applied Mechanics |
| Volume | 41 |
| Issue number | 1 |
| Publication status | Published - Jan 2009 |
| Externally published | Yes |
Keywords
- Adiabatic shear plugging
- Blunt rigid projectile
- Metallic plate
- Perforation
- Shear plugging