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| Simulation and Analysis of Aging Behavior of Fuzes under Long-term Storage |
| Received:June 27, 2023 Revised:August 09, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.10.007 |
| KeyWord:fuze long-term storage creep simulation aging behavior weak parts temperature alternation |
| Author | Institution |
| LOU Wen-zhong |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing , China |
| LI Xin-zhe |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing , China;Southwest Institute of Technology and Engineering, Chongqing , China |
| FENG Heng-zhen |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing , China |
| HE Bo |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing , China |
| SU Wen-ting |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China |
| LYU Si-ning |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China |
| LI Zhi-peng |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China |
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| Abstract: |
| The work aims to clarify the failure mode of a certain type of fuze after 14 years of storage, and to study the effect of periodic temperature alternation on the fuze and its weak parts. A creep simulation method based on time hardening was established with ANSYS workbench. With a certain type of fuze as the research object, the creep simulation of periodic temperature alternation was carried out. According to the simulation calculation results, the weak parts were found and the aging failure mode was analyzed. Under the cyclic condition of ambient temperature in each cycle, the simulation time was set to 14 year. The results showed that the overall creep strain rate of the fuze exceeded 1%, the average compressive stress decreased by 21%, the relaxation stability became weaker, and the sealing became poor, among which the fuze motor housing, motor fan blade and bottom line docking plate were weak parts and were prone to failure behavior. After the fuze is stored in a southwestern hygrothermal environment for 14 years, the periodic temperature alternating stress will lead to defects in the fuze, and the defects are concentrated in the motor shell, motor fan blade and bottom line docking plate. Therefore, these parts should be protected. |
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