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Accelerated Life Prediction of the Rubber for Combat Boots

전투화용 고무의 가속수명예측

  • Received : 2015.10.22
  • Accepted : 2015.12.04
  • Published : 2015.12.31

Abstract

Typical aging for the rubber using the current military adhesive combat boots was spread with a regular aging caused by heat stress. In this study, the aging test of the rubber for combat boots was carried out and the reaction rate constant, k was calculated at aging temperature $60^{\circ}C$, $80^{\circ}C$ and $100^{\circ}C$, using the Arrhenius equation. The lifetime limit was assumed that the tensile strength of the product is reduced to 30%, the elongation is reduced to 50% and abrasion resistance ratio is 380%. ln($P/P_0$) and the lifetime was predicted with the consideration of the activation energy constant. According to the above, the lifetime of the rubber for combat boots with influenced by aging temperature was predicted. As the result, the estimate lifetime at $20^{\circ}C$ was confirmed more than 10 years.

Keywords

Accelerated life test;Arrhenius relation;Estimate lifetime;Reliability assurance;Rubber for combat boots

References

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  4. R. P. Brown, "Practical Guide to the Assessment of the Useful life of Rubbers", pp. 70-72, Rapra Technology, 2001.
  5. ASTM D 2000, "Standard Classification System for Rubber Products in Automotive Applications", pp. 491, 1987.
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Acknowledgement

Supported by : 국방기술품질원