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November 12, 2025Railway SciencesOpen Access

Finite element analysis and optimization of the rubber diaphragms in type-120 relief valves

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Authors

MGMing GaoDLDongkai LiKLKun Liu

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Overview

Finite element analysis reveals the failure mechanism of rubber diaphragms, suggesting improvements for extended service life and performance.

Key Points

  • Dynamic loading conditions caused peak stress of 5.44 MPa on diaphragms, indicating high risk of fatigue damage.
  • Finite element analysis demonstrated effective modeling of diaphragm stress distribution and failure mechanisms.
  • The study confirms that high tensile moduli rubber compounds can enhance diaphragm service life under stress conditions.
  • Findings may contribute to developing long-life rubber products in the railway industry.

Cite This Study

Gao et al. (2025) studied this question.

synapsesocial.com/papers/69252e83c0ce034ddc355983https://doi.org/10.1108/rs-09-2025-0039
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