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| Analysis of the Effect of Hygrothermal Stress on the Aging Behavior of a Certain Type of Fuze |
| Received:June 27, 2023 Revised:August 09, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.10.006 |
| KeyWord:fuze moist-thermal coupling simulation aging behavior weak parts Arrhenius-Peck model |
| 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 |
| HE Bo |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing , China |
| FENG Heng-zhen |
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing , China;Chongqing Innovation Center, Beijing Institute of Technology, Chongqing , China |
| KAN Wen-xing |
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 study the effects of high temperature and high humidity on weak parts of fuze, so as to find out the failure mode of a certain type of fuze in high temperature and high humidity environment. ANSYS workbench software was used to simulate thermal dispersion and establish a wet diffusion simulation method. With a certain type of fuze as the research object, wet simulation, thermal simulation and moist-thermal-mechanical coupling simulation were carried out, and according to the simulation calculation results, the weak parts were found out and their aging failure behavior was analyzed. Under the conditions of ambient temperature of 85 ℃ and relative humidity of 85%, after 1 hour of simulation, the internal temperature transmission of the fuze basically reached saturated state, the humidity distribution gradient was obvious, and the maximum deformation of the product due to humid thermal stress was 0.19 mm in the turbine motor housing, and a stress concentration of about 17 MPa was generated, which was highly consistent with the failure site and failure mode of the real sample. Therefore, in high temperature and high humidity environment, the hygrothermal stress will cause defects to the fuze, and the defects will be concentrated in the motor housing. |
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