Numerical Simulation on Explosion in Double-Layer Medium of Concrete and Soil |
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Authors: | LIU Yan HUANG Feng-ei and ZHANG Zhen-yu |
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Affiliation: | state Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,Chin;state Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,Chin;National University of Defense Technology,Changsha 410073,China) |
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Abstract: | The numerical simulation on explosion in concrete and soil is performed by using the three-dimension finite element code LS-DYNA, into which a continuum damage model which can well describe the fracture of concrete is implemented. As a consequence, wave propagation and attenuation in concrete and on soil-concrete interface are obtained respectively. Moreover, the damage regions of concrete at different thicknesses of soil (TOS) and depths of charge (DOC) are procured. The existent soil reduces damage region of concrete. Numerical results provide reference for design of warhead and protective structure and blasting. |
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Keywords: | explosion concrete soil damage numerical simulation |
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