Dynamic response of anti-explosion vessel with aluminium honeycomb sandwich structure

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (17) : 222-228.

WANG Zhen1, GU Wenbin1, YUAN Qi2, CHEN Heng1, HAO Likai1,3

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Abstract

As the aluminium honeycomb core has good deformation ability, excellent mechanical properties and cushioning energy-absorbing effect, so it has shown great advantages in application of large-scale explosion vessel.Here, combining test and simulation results of single-layer explosion vessel, the weakest position of single-layer explosion vessel under the action of explosion load was obtained to verify the reliability of the numerical model.Then, a designed of steel plate-aluminium honeycomb core-steel plate composite multi-layer explosion vessel with sliding lining was proposed, and its meso model was established.Numerical simulation and energy analysis were performed for its deformation and failure process under explosion load.The results showed that simulation results of single-layer explosion vessel verify test values, and its end cover bears the maximum load due to three-wave gathering; deformation process of aluminium honeycomb core lining and energy-dissipating proceed simultaneously, it is the main way of energy-dissipating; aluminium honeycomb core lining makes explosion vessel obtain a better anti-explosion ability, and its strain value under 1 000 g explosive charge is less than that of 150 g single-layer vessel; the study results can provide a reference for engineering design.

Key words

aluminium honeycomb core / explosion vessel / energy-absorbing mechanism / strain / meso model

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WANG Zhen, GU Wenbin, YUAN Qi, CHEN Heng, HAO Likai. Dynamic response of anti-explosion vessel with aluminium honeycomb sandwich structure[J]. Journal of Vibration and Shock, 2021, 40(17): 222-228

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