Fatigue performance analysis of hoop-wrapped composite cylinders with pit defects on liner based on element birth and death method

Guide Deng, Qingwan Li, Liang Sun, Jingxian Wang, Xiang Ling

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

Pit defects due to corrosion may occur in the inner surfaces of metal liners of fiber wrapped composite cylinders during working process, which may affect their anti-fatigue performance. Finite element method was used to analyze the stress of hoop-wrapped composite cylinders with pit defects of different sizes based on element birth and death method to take the pre-stress resulted from autofrettage process into consideration. Numeral results show that stress concentration appears in the pit defects, but the portion of the liner far away from pit defects keeps the same stress level with the defect-free composite cylinder. Pit defects on liner reduce the fatigue performance of the composite cylinder. Goodman equation was utilized to calculate the equivalent alternating stress amplitude to evaluate the variation of the fatigue performance with the dimensional change of the pit defects in the inner surfaces of metal liners of hoop-wrapped composite cylinders.

源语言英语
主期刊名Codes and Standards
出版商American Society of Mechanical Engineers (ASME)
ISBN(电子版)9780791845981
DOI
出版状态已出版 - 2014
活动ASME 2014 Pressure Vessels and Piping Conference, PVP 2014 - Anaheim, 美国
期限: 20 7月 201424 7月 2014

出版系列

姓名American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
1
ISSN(印刷版)0277-027X

会议

会议ASME 2014 Pressure Vessels and Piping Conference, PVP 2014
国家/地区美国
Anaheim
时期20/07/1424/07/14

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