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Study on Effect Mechanism of Aspect Ratio for Vertical Penetration of a Long-Rod Projectile
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Guang-Fa GAO1, 2, 3, Yong-Chi LI2, Rui-Yuan HUANG2, Shi-Wei DUAN2
Chinese Journal of High Pressure Physics | 2011, 25(4) : 327 - 332
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Chinese Journal of High Pressure Physics | 2011, 25(4): 327-332
Study on Effect Mechanism of Aspect Ratio for Vertical Penetration of a Long-Rod Projectile
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Guang-Fa GAO1, 2, 3, Yong-Chi LI2, Rui-Yuan HUANG2, Shi-Wei DUAN2
Affiliations
  • 1.School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001, China
  • 2.Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
  • 3.Key Laboratory of Safe and Efficient Mining Cosponsored by Anhui Province and Ministry of Education, Huainan 232001, China
Published: 2011-08-15
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The penetration depth is analyzed for a long-rod projectile penetrating semi-infinite target using dimensional theory. Combining numerical simulation and empirical formula studies, the effect mechanism of aspect ratio is systematically investigated. The results show that the normalized energy density consumption by penetration depth increases as increasing of aspect ratio when the penetration efficiency does not change. For the long-rod penetrators with same volume, the penetration depth increases with the increasing of aspect ratio until reaches a maximum value. The main reason of this phenomenon is due to the funnel-shaped crater and high-temperature generated in subsequent unstable stage of penetration. The interface resistance effect has strong influence on the penetration depth, but which has no apparent connection with the aspect ratio of penetrator.

penetration  /  aspect ratio  /  penetration efficiency  /  penetration depth
高光发, 李永池, 黄瑞源, 段士伟. 长径比对长杆弹垂直侵彻能力影响机制的研究. 高压物理学报, 2011 , 25 (4) : 327 -332 .
Guang-Fa GAO, Yong-Chi LI, Rui-Yuan HUANG, Shi-Wei DUAN. Study on Effect Mechanism of Aspect Ratio for Vertical Penetration of a Long-Rod Projectile[J]. Chinese Journal of High Pressure Physics, 2011 , 25 (4) : 327 -332 .
Appendix
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Year 2011 volume 25 Issue 4
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Article Info
  • Receive Date：2010-04-06
  • Online Date：2026-11-02
  • Published：2011-08-15
Article Data
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History
  • Received：2010-04-06
  • Revised：2010-09-04
Funding
Affiliations
    1.School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001, China
    2.Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
    3.Key Laboratory of Safe and Efficient Mining Cosponsored by Anhui Province and Ministry of Education, Huainan 232001, China
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表12种不同金属材料的力学参数
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
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