Study on the influence of ceramic protective structures on the resistance of fuze to fragment impact
In response to safety concerns related to the impact of fragments on fuzes,a fuze protection structure has been proposed.This structure involves adding a layer of protective ceramics between the fuze transmission tube casing and the fuze body to enable the fuze to absorb some of the kinetic energy when impacted by fragments.Through a comparative analysis using simulations and experiments,the impact resistance performance of unfurnished,aluminum oxide ceramic,and silicon carbide ceramic protected structures was examined.The results demonstrate that the addition of a silicon carbide ceramic protective structure reduces the peak pressure on the explosive in the fuze by 82.6%and decreases the witness plate's dent diameter by 4.8%under fragment impact.These values surpass the performance of aluminum oxide ceramic protection,which exhibited reductions of 81.8%and 2.58%,respectively.Ceramic protection effectively enhances the fuze's resistance to fragment impact,with silicon carbide ceramic outperforming aluminum oxide ceramic in impact resistance.
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