소성∙가공 (Transactions of Materials Processing)

  • 제17권4호
  • /
  • Pages.292-301
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  • 2008
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  • 1225-696X(pISSN)
  • /
  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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자동차용 압축천연가스 저장용기의 피로수명향상을 위한 자긴처리 효과 분석

Analysis of an Autofrettage Effect to Improve Fatigue Life of the Automotive CNG Storage Vessel

  • 김호윤 (부산대학교 기계기술연구원) ;
  • 황범철 (부산대학교 기계기술연구원) ;
  • 배원병 (부산대학교 기계공학부) ;
  • 한승무 (경희대학교 동서의료공학과) ;
  • 김철 (부산대학교 기계기술연구원)
  • 발행 : 2008.07.01
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초록

Type 2 compressed natural gas(CNG) storage vessels for automobiles are becoming widely used. They are not only supplied to automakers in Korea, such as Hyundai Motors, but increasingly, they are being exported overseas. Autofrettage is a process that produces beneficial residual stresses in a vessel by subjecting it to excessive internal pressure. This strengthens the vessel and improves its fatigue resistance. This paper presents research investigating the autoftettage process and residual stresses it produces in type 2 CNG storage vessels. A finite element analysis technique and a closed form equation are used. Then, fatigue resistance is analyzed through a fatigue evaluation performed according to ASME section VIII.

키워드

참고문헌

  1. J. F. Harvey, 1974, Theory and Design of Modern Pressure Vessels, Van Nostrand Reinhold Company, New York, pp. 61-67
  2. S. S. Gill, 1970, The Stress Analysis of Pressure Vessels and Pressure Vessel Components, Pergamon Press Ltd., Hungary, pp. 8-44
  3. J. S. Park, S. S. Jeung, J. H. Chung, 2006, Cycling life prediction method considering compressive residual stress on liner for the filament-wound composite cylinders with metal liner, The Korean Society for Composite Materials, Vol. 19, No. 1, pp. 22-28
  4. J. F. Harvey, 1974, Theory and Design of Modern Pressure Vessels, Van Nostrand Reinhold Company, New York, pp. 59-61
  5. E. F. Megyesy, 1983, Pressure Vessel Handbook, Pressure Vessel Handbook Publishing, Inc., USA, pp. 13-27
  6. ASME, 2004, ASME Boiler & Pressure Vessel Code Ⅷ: Rules for Construction of Pressure Vessel, Division 2: Alternative Rules, The American Society of Mechanical Engineers, New York, Appendix 5
  7. R. Chuse, B.E. Carson, 1993, Pressure Vessels, McGraw-Hill, Inc., USA, pp. 209-214
  8. H.H. Bednar, 1986, Pressure Vessel Design Handbook, Van Nostrand Reinhold Company, New York, pp.39-54

피인용 문헌

  1. A Study on Structure Analysis and Fatigue Life of the Common Rail Pipe vol.19, pp.2, 2010, https://doi.org/10.5228/KSPP.2010.19.2.088
  2. A Study on Improving Fatigue Life for Composite Cylinder with Seamless Integrated Liner vol.17, pp.6, 2013, https://doi.org/10.7842/kigas.2013.17.6.46