70MPa 수소가스차량용 복합소재 압력용기의 응력특성에 관한 안전성 연구A Safety Study on the Stress Characteristics of a Composite Pressure Cylinder for a Use of 70MPa Hydrogen Gas Vehicle
- Other Titles
- A Safety Study on the Stress Characteristics of a Composite Pressure Cylinder for a Use of 70MPa Hydrogen Gas Vehicle
- Authors
- 김청균; 김도현
- Issue Date
- 2012
- Publisher
- 한국생산제조학회
- Keywords
- 수소가스; 복합재; 압력용기; 탄소섬유; 알루미늄라이너; 응력; Hydrogen gas; Composite; Pressure cylinder; Carbon fiber; Aluminum liner; Stress
- Citation
- 한국생산제조학회지, v.21, no.1, pp.1 - 6
- Journal Title
- 한국생산제조학회지
- Volume
- 21
- Number
- 1
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/19730
- ISSN
- 2508-5093
- Abstract
- This paper presents a stress safety of a composite pressure cylinder for a hydrogen gas vehicle. The composite pressure cylinder in which is composed of an aluminum liner and carbon fiber wound layers contains 104 liter hydrogen gas, and is compressed by a filling pressure of 70 MPa. 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, 255.2MPa of an aluminum liner is sufficiently low compared with that of 272 MPa, which is 95% level of a yield stress for aluminum. Also, the composite layers in which are wound on the surface of an aluminum cylinder are safe because the stress ratios from 3.46 to 3.57 in hoop and helical directions are above 2.4 for a minimum safety level. The proposed composite pressure cylinder wound by carbon fibers is useful for 70 MPa hydrogen gas vehicles.
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Collections - Department of General Studies > Department of General Studies > 1. Journal Articles
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