Abstract
The hydrodynamic theory of long-rod penetration is reexamined by applying the modified Bernoulli equation to the forces acting on both sides of the moving rod-target interface. Using a ratio of 2 for the effective cross sectional areas of the mushroomed and rigid parts of the rod, it is shown that analytical expressions can be used to calculate the resistance to target penetration. The analytical expression used to calculate this resistance is the cylindrical cavity expansion, which yields resistance values of 3-4 times the compressive yield strength of the target material. Calculations based on our model show good agreement with experimental data, for steel and tungsten long rods penetrating various steel targets.
| Original language | English |
|---|---|
| Pages (from-to) | 483-486 |
| Number of pages | 4 |
| Journal | International Journal of Impact Engineering |
| Volume | 10 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - 1 Jan 1990 |
| Externally published | Yes |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Automotive Engineering
- Aerospace Engineering
- Safety, Risk, Reliability and Quality
- Ocean Engineering
- Mechanics of Materials
- Mechanical Engineering