Analysis of the Impact of Defect Evolution on the Storage Life of Electronic Fuzes under Hot-Humid Environments

ZHANG Cheng; ZHANG Cong; YU Junmiao; SHI Rui; LI Haiming

doi:10.7643/ issn.1672-9242.2025.10.002

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Equipment Environmental Engineering ›› 2025, Vol. 22 ›› Issue (10) : 11-17. DOI: 10.7643/ issn.1672-9242.2025.10.002

Weapons Equipment

Analysis of the Impact of Defect Evolution on the Storage Life of Electronic Fuzes under Hot-Humid Environments

ZHANG Cheng¹, ZHANG Cong^{1, *}, YU Junmiao², SHI Rui¹, LI Haiming¹

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Abstract

The work aims to identify the main defect types and life evolution characteristics of electronic fuzes under hot and humid conditions, investigate the impact of environmental stress on fuze storage life, and develop a life prediction model suitable for hot and humid stress fields. The typical failure modes of electronic fuzes under hot and humid storage conditions were analyzed to identify key defects and failure paths. Based on this, the Hallberg-Peck acceleration model and the Weibull distribution function were introduced to establish a life modeling method focused on defect evolution, with model verification and lifespan prediction performed with constructed sample data. Simulation results showed that the model could effectively reflect the degradation trend of fuze life in a hot and humid environment, with the acceleration factor being consistent with actual stress level variations. The fitted distribution demonstrates good interpretability and adaptability. The life model based on defect-dominated mechanisms can effectively assess the impact of hot and humid stress on fuze life, offering high engineering applicability and providing a methodological and theoretical foundation for the integration of defect detection and life prediction in future work.

Key words

electronic fuze / hot-humid environment / defect evolution / accelerated life / Weibull distribution / life modeling / Monte Carlo simulation

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ZHANG Cheng, ZHANG Cong, YU Junmiao, SHI Rui, LI Haiming. Analysis of the Impact of Defect Evolution on the Storage Life of Electronic Fuzes under Hot-Humid Environments[J]. Equipment Environmental Engineering. 2025, 22(10): 11-17 https://doi.org/10.7643/ issn.1672-9242.2025.10.002

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