In order to investigate the configuration and mass distribution of collision bulging, dynamic behaviors of Pb plate driven by collision of head-on sliding detonation waves were characterized with high-speed frame photography and pulsed X-ray radiography. Experimental results showed that a bulging similar to a shaped charge jet were produced in the collision region, which appeared as a multi-zone structure across several layers. The tip of bulging with higher velocity had a characteristic of fragmentary and cavitation because of its speed gradient and the interaction with air, and its bulk density was much lower than the pre-shock initial density of Pb. Though the root of bulging had a lower velocity and a higher density relatively, it was also in non-dense state. It suggested that the collision of sliding detonation waves, strength of materials and shock melting might play a leading role in the bulging formation process.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |