Abstract
Through fragments collected from tests under explosive loading and observation of metallographic microstructure of the steel sections, the fracture mechanism of V-notches on the inner surface of 20 steel cylinder is studied. The result showed that the fracture mechanism of the case is mainly ductile fracture; quenched steel with high strength easily forms adiabatic shear band, which is in favor of controlling the shell into fragments of predetermined size and shape; the case fractures with the crack extending from the root of V-notch to the outer surface of the case.
| Original language | English |
|---|---|
| Pages (from-to) | 381-384 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 28 |
| Issue number | 5 |
| Publication status | Published - May 2008 |
Keywords
- Fracture mechanism
- Heat treatment
- Metallographic analysis
- Warhead steel shell
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