Numerical simulation on steel box damage under internal explosion by smoothed particle hydrodynamics

QIANG Hongfu; SUN Xinya; WANG Guang; HUANG Quanzhang

doi:10.11883/bzycj-2017-0439

Volume 39 Issue 5

May 2019

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QIANG Hongfu, SUN Xinya, WANG Guang, HUANG Quanzhang. Numerical simulation on steel box damage under internal explosion by smoothed particle hydrodynamics[J]. Explosion And Shock Waves, 2019, 39(5): 052201. doi: 10.11883/bzycj-2017-0439

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QIANG Hongfu, SUN Xinya, WANG Guang, HUANG Quanzhang. Numerical simulation on steel box damage under internal explosion by smoothed particle hydrodynamics[J]. Explosion And Shock Waves, 2019, 39(5): 052201. doi: 10.11883/bzycj-2017-0439

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Numerical simulation on steel box damage under internal explosion by smoothed particle hydrodynamics

doi: 10.11883/bzycj-2017-0439

Engineering University of Rocket Army, Xi’an 710025, Shaanxi, China

Received Date: 2017-12-06
Rev Recd Date: 2018-01-26
Publish Date: 2019-05-01

Abstract

Abstract

With the strategic structure of the evolving terrorist attacks, ships and bridges which are supported by steel boxes gradually become important targets of terrorist attacks and enemy military strikes. We simulate the explosion process in a steel box by applying the smoothed particle hydrodynamics (SPH) method, analyze the deformation process of the steel box during the internal explosion, obtain the distributions of the pressure and the von Mises stress at different times, and achieve the trend of velocity and pressure at the center of the steel box plate. We find the feasibility and accuracy of the SPH method in simulating the internal steel box explosion through comparing with the experiment. We simulate the damage form and damage degree of the steel box structure subjected to internal blast at different positions. The results show that: when the explosive explodes at the corner and 60 mm from each box’s plate, there is the most serious damage; when the explosive explodes in the center, there is the least damage.
- steel box,
- internal explosion,
- smoothed particle hydrodynamics,
- von Mises stress,
- deformation

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References(16)

References

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