Protection performance analysis of auxetic structures under continuous explosive impact

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Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (2) : 74-78.

LUO Fang，YANG Deqing

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Abstract

The phenomenon of continuous blasts often occurs in serious accidents, which puts forward higher requirements for the performance of protective structures. Therefore, the study on auxetic(the negative Poisson's ratio) protective structure under continuous explosive impact is carried out. The pressure, deformation mode and strain distribution of auxetic blast wall and the auxetic double bulkhead under continuous impact are analyzed. The damage mechanism under continuous explosive impact is revealed. It is found that the continuous impact forms of internal and external are different, which carried out different deformation modes of auxetic protective structures. The analysis of auxetic protective structure under continuous explosive impact can provide reference for the design of protective structure.

Key words

continuous explosive impact / internal blast / external blast / auxetic structure / deformation mode / damage mechanism;

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LUO Fang，YANG Deqing. Protection performance analysis of auxetic structures under continuous explosive impact[J]. Journal of Vibration and Shock, 2022, 41(2): 74-78

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