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Numerical Simulation of Dynamic Response of Concrete Subjected to Internal Load of Blast
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Bing-Lin LENG1, 2, Jin-Yu XU1, 3, Hui-Xiang SUN1, Jie XU4
Chinese Journal of High Pressure Physics | 2009, 23(2) : 111 - 116
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Chinese Journal of High Pressure Physics | 2009, 23(2): 111-116
Numerical Simulation of Dynamic Response of Concrete Subjected to Internal Load of Blast
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Bing-Lin LENG1, 2, Jin-Yu XU1, 3, Hui-Xiang SUN1, Jie XU4
Affiliations
  • 1.The Engineering Institute, Air Force Engineering University, Xi'an 710038, China
  • 2.PLA Unit 95080, Shantou 515823, China
  • 3.Northwestern Polytechnical University, Xi'an 710000, China
  • 4.PLA Unit 95538, Xinjin 611430, China
Published: 2009-04-15
Outline
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It is still difficult to give the all-sided and accurate description of explosion damaging effects according to experiment. In this paper, by using nonlinear dynamic finite-element program ANSYS/LS-DYNA, which can deal with fluid-solid coupling algorithm, dynamic response of concrete subjected to internal blast loading such as development of cavitations was simulated. The size of the blast pit, the damage area, pressure contour and stress-time curve in concrete with or without steel composite were analyzed. Also, the damage mechanism of concrete-steel plate composition under explosive loading was studied. Research showed that the fluid-solid coupling algorithm can avoid element abnormality and mesh vanishing, and also improve the efficient. The calculated results described the concrete breakage of the center blasting cavity compression and the free surface tension spalling, which were in agreement with the theoretical results. Synchronously, due to the steel plain reinforcing, the steel plate composite can decrease the pull stress and restrain the development of crack, thereby the capability of the prevent-collapse and integrality of the structure will be improved.

blast loading  /  concrete  /  numerical simulation  /  finite-element method  /  explosive cavitation
冷冰林, 许金余, 孙惠香, 徐杰. 内部爆炸载荷作用下混凝土动力响应的数值模拟. 高压物理学报, 2009 , 23 (2) : 111 -116 .
Bing-Lin LENG, Jin-Yu XU, Hui-Xiang SUN, Jie XU. Numerical Simulation of Dynamic Response of Concrete Subjected to Internal Load of Blast[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (2) : 111 -116 .
Appendix
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Year 2009 volume 23 Issue 2
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Article Info
  • Receive Date：2008-02-26
  • Online Date：2026-10-30
  • Published：2009-04-15
Article Data
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History
  • Received：2008-02-26
  • Revised：2008-06-20
Funding
Affiliations
    1.The Engineering Institute, Air Force Engineering University, Xi'an 710038, China
    2.PLA Unit 95080, Shantou 515823, China
    3.Northwestern Polytechnical University, Xi'an 710000, China
    4.PLA Unit 95538, Xinjin 611430, China
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Citations
表12种不同金属材料的力学参数
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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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