Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Study on the influence of ceramic protective structures on the resistance of fuze to fragment impact
| DOI: | 10.11809/bqzbgcxb2024.06.022 |
| Keywords: | explosion mechanics; fragment impact; ceramic protection; insensitive fuze; numerical simulation |
| Abstract: | 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. |
| Published: | 2024-06-28 |