한국가스학회지 (Journal of the Korean Institute of Gas)

  • 제23권5호
  • /
  • Pages.1-7
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  • 2019
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  • 1226-8402(pISSN)
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  • 2713-6922(eISSN)
한국가스학회 (The Korean Institute of GAS)
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복합재 용기의 손상에 따른 ACM기법 적용 연구

A Study on the Applications of the ACM(Area Capacity Method) for the Carbon-Fiber Composit Cylinder according to the Flaw Depth

  • 장갑만 (한국가스안전공사 한국가스안전연구원) ;
  • 임상식 (한국가스안전공사 한국가스안전연구원) ;
  • 김영규 (한국가스안전공사 한국가스안전연구원) ;
  • 김정환 (한국가스안전공사 한국가스안전연구원)
  • Jang, Kap Man (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Yim, Sang Sik (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kim, Young Gyu (Institute of Gas Safety R&D, Korea Gas Safety Corporation) ;
  • Kim, Jeong Hwan (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
  • 투고 : 2019.07.16
  • 심사 : 2019.10.23
  • 발행 : 2019.10.31
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초록

호흡용 용기에 흠 등의 결함이 발생하였을 때 용기의 잔존강도를 파악하여 파열압력을 판단해야하지만, 복합재료 용기의 경우 흠에 따른 파열 강도의 예측이 어려우며 기법이 복잡하다. 따라서 본 연구에서는 Type-I 용기의 면적용량법 적용 결과를 토대로 Type-III 용기에 결함발생시 파열을 예측하기 위해 면적 용량법 모델을 개발하였으며, 그 신뢰성을 확인하기 위해 용기의 외면에 흠을 가공하여 파열시험을 실시하였다. 면적 용량법 모델의 예측 결과와 실험의 경향이 매우 일치하는 경향을 보였으며, 향후 복합재 용기의 파열압력 추정 방법에 있어 중요한 자료가 될 것으로 기대한다.

Although the rupture pressure is evaluated from remaining strength when a flaw is defected to cylinder surface, but the rupture pressure can be not easy to estimate for the composite cylinders. In this study, the area capacity method is developed for the type-3 cylinders that is based on the result applied area capacity method of type-1 cylinders. And the reliability is validated by bursting test with artificial flaw at the cylinder surface. The predicted data of area capacity method and experimental results have very similar tendency. This method and results will be a very important records in field of rupture pressure estimations.

키워드

참고문헌

  1. American Society of Mechanical Engineers, Manual for Determining the Remaining Strength of Corroded Pipelines : Supplement to ASME N31 Code for Pressure Piping, 2012 ed., ASME, New York, (2012)
  2. DET NORSKE VERITAS, Recommended practice : DNB-RP-F101 : Corroded Pipelines, DNV, October, (2010)
  3. Jang, K. M., Kim, J. H., Jang, Y. R., Lee, J. H., and Jo, Y.D., "Development of the Safety Cabinet for Respiratory High-Pressure cylinder according to Consequence Analysis of Physical Explosion Damage ", KIGAS, 20(6), 80-88, (2016)
  4. Yim, S. S., Kim, J. S., Ryu, Y. D., and Lee, J. H., "A Study on the Residual Strength of the Carbon Steel pipe using in Fuel Gas ", KIGAS, 20(5), 112-117, (2016)
  5. Yang, D. J., Kim, Y. S., Jang, K. M., and Kwan, J. R., "A Study of Type 2 Cylinder's Safety Evaluation and Cases of CNG Vehicle Fuel Cylinder with External Damaged Composite " Proc. of Spring Conf., KIGAS, 176-180, (2010)
  6. Yang, D. J., Kim, Y. S., and Kim, L. H., "Assessments of Composite Flaw on the Type III Cylinders for Compressed Natural Gas Vehicles", KSEE, 20(2), 90-95, (2011)
  7. Kim, Y. S., "The Effect of Composite Material Flaws on Fatigue Life of the Type-3 Cylinders for Compressed Natural Gas Vehicles", Seoul National University of Science and Technology, (2018)