摘要
Integrated with relative SHPB tests, the adiabatic shear deformation of specimen is observed based on a series of numerical simulations of SHPB test using 921A steel pure shear hat-shaped specimens. The initiation and the propagation of an adiabatic shear band (ASB) and the relative distribution of temperature field in the specimen are analyzed. It is found that ASB is formed as the spread of an unstable zone with high temperature and high strain in the two ends of shear zone. The spread speed of an ASB is related to the loading rate, whilst the width of ASB is nearly independent of the loading rate, and equals to about 70 μm, i.e., the width of the designed shear zone. All the ASBs are deformed bands corresponding to various values of the loading rate.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 361-369 |
| 页数 | 9 |
| 期刊 | Baozha Yu Chongji/Expolosion and Shock Waves |
| 卷 | 30 |
| 期 | 4 |
| 出版状态 | 已出版 - 7月 2010 |
| 已对外发布 | 是 |