The Simulation and Calculation for the destroy impulse of vent panels with impact effect

You Zewei,Wang Yuan,Zhang Qinghua,Zhang Zhenglin,Huang Xiaodi

Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (12) : 83-87.

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (12) : 83-87.

The Simulation and Calculation for the destroy impulse of vent panels with impact effect

  • You Zewei,Wang Yuan,Zhang Qinghua,Zhang Zhenglin,Huang Xiaodi
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Abstract

Focus on the problem of the vent panel’s destroy with blast load. Based on the yield line theory of the two-way four edges fixed panel, The failure mechanism is analyzed.The criteria of impulse failure is pretended and the formula of destroy impulse is derived.Simulation is carried out by ANSYS/LS-DYNA and the results correspond to theoretical analysis, which confirm venting capacity of vent panels can be measured by impulse. The factors which affect destroy impulse are analyzed.The strength of extension and thickness is the most important factors,however,the elasticity modulus and poisson’s ratio have a little effect.The ways of improving venting capacity is offered.

Key words

vent panel / destroy impulse / blast load / yield line theory;venting capacity / steel fiber

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You Zewei,Wang Yuan,Zhang Qinghua,Zhang Zhenglin,Huang Xiaodi. The Simulation and Calculation for the destroy impulse of vent panels with impact effect[J]. Journal of Vibration and Shock, 2017, 36(12): 83-87

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