THE NUMERICAL SIMULATION OF INFLUENCE OF AN INTERNAL BLAST CAVITY EFFECT ON OVERPRESSURE FOR A STRUCTURE

Li Hua; Huang Bencai

doi:10.13204/j.gyjz201202011

Volume 42 Issue 2

Dec. 2014

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Li Hua, Huang Bencai. THE NUMERICAL SIMULATION OF INFLUENCE OF AN INTERNAL BLAST CAVITY EFFECT ON OVERPRESSURE FOR A STRUCTURE[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(2): 48-53. doi: 10.13204/j.gyjz201202011

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Li Hua, Huang Bencai. THE NUMERICAL SIMULATION OF INFLUENCE OF AN INTERNAL BLAST CAVITY EFFECT ON OVERPRESSURE FOR A STRUCTURE[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(2): 48-53. doi: 10.13204/j.gyjz201202011

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THE NUMERICAL SIMULATION OF INFLUENCE OF AN INTERNAL BLAST CAVITY EFFECT ON OVERPRESSURE FOR A STRUCTURE

doi: 10.13204/j.gyjz201202011

1.
School of Aerospace and Mechanics of Tongji University,Shanghai 200092,China

Received Date: 2011-09-27
Publish Date: 2012-02-20

Abstract

Abstract

Based on the verification of the accuracy of numerical simulation and grid size,it was simulated the internal explosion of an cuboid using Euler-FCT method and two-step simulation,taking account of multiple reflections.It was studied the cavity effect of doors and windows,the effect of the windowsill high and window size on blast wave propagation,and also analysed the result.Cavity effect has a great impact on blast wave propagation which can not be ignored.Window size has a certain influence on blast wave propagation,and the effect of windowsill height is relatively small.
- blast wave,
- structure interior,
- cavity effect,
- Autodyn,
- numerical simulation

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References

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Adam Zyskowski,Isabelle Sochet. Study of the Explosion Process in a Small Scale Experiment-Structural Loading[J].Journal of Loss Preventtion in the Process Industries,2004,(04):291-299.

曹玉忠,卢泽生. 抗爆容器内爆炸流场数值模拟[J].高压物理学报,2001,(02):127-132.

王璃. 典型结构内部爆炸波的传播规律与超压荷载模型[D].天津:天津大学,2008.

曲树盛. 地铁车站内爆炸波的传播规律与超压荷载模型[D].天津:天津大学,2008.

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师燕超. 爆炸荷载作用下钢筋混凝土结构的动态响应行为与损伤破坏机理[D].天津:天津大学,2009.

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