Browse > Article
http://dx.doi.org/10.7842/kigas.2012.16.2.25

Strength Safety Study on the Stress Characteristics of a Composite Pressure Cylinder for 35MPa Hydrogen Gas Vehicle  

Kim, Chung-Kyun (Research Center for Tribology, Mechatronics and Energy Technology Hongik University)
Kim, Do-Hyun (Research Center for Tribology, Mechatronics and Energy Technology Hongik University)
Publication Information
Journal of the Korean Institute of Gas / v.16, no.2, 2012 , pp. 25-30 More about this Journal
Abstract
This paper presents a stress safety of a composite pressure cylinder in which is composed of an aluminum liner and composite layers with carbon fiber/epoxy and glass fiber/epoxy resigns. The composite pressure cylinder for a hydrogen gas vehicle contains 9.2 liter hydrogen gas, and hydrogen gases are compressed by a filling pressure of 35MPa. The FEM computed results are analyzed based on the US DOT-CFFC basic requirement for a hydrogen gas cylinder and KS B ISO specification. The FEM results indicate that the stress, 247MPa of an aluminum liner is sufficiently low compared with that of 272MPa, which is 95% level of a yield stress for aluminum. And, the carbon fiber composite layers in which are wound on the surface of an aluminum cylinder are safe because the maximum carbon fiber stresses from 29.43% to 28.87% in hoop and helical directions are below 30% for a given minimum required burst pressure level, respectively. The carbon fiber composite layers are also safe because the stress ratios from 3.40 to 3.46 in hoop and helical directions are above 2.4 for a minimum safety level, respectively.
Keywords
hydrogen gas; composite; pressure cylinder; carbon fiber; glass fiber; aluminum liner;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Fukunaga, H., and Chou, T. W., "Simplified Design Techniques for Laminated Cylindrical Pressure Vessels under Stiffness and Strength Constraints," J. of Composite Materials, Vol. 22, pp.1156-1169, (1998)
2 Yoon, Y. B., Cho, S. W., and Ha, S. K., "Optimal Design of Filament Wound Composite CNG Pressure Vessel," J. of the KSME(A), Vol. 26, No. 1, pp.23-30, (2002)   과학기술학회마을   DOI   ScienceOn
3 US DOT-CFFC Basic Requirement, (2007)
4 KS B ISO 11119-2, (2008)
5 MARC, MARC User's Manual Ver. 7.3, MARC Analysis Research Corp., California, USA, (1999)