콘텐츠 본문
논문 해외 국제전문학술지(SCI급) A study on Evaluation of Fatigue Strength of a GFRP Composite Bogie Frame for Urban Subway Vehicles
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2013-06
- 저자명 Kwang-Woo Jeon, Kwang-Bok Shin
- 학술지명 Advanced Composite Materials
- 발행처명 Taylor & Francis
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 2
- 논문 다운로드 링크(외부) https://www.tandfonline.com/doi/abs/10.1080/09243046.2013.795215
- 연구분야 공학 > 기계공학
논문 초록 (Abstract)
The fatigue strength and life of a GFRP composite bogie frame for urban subway trains were evaluated in this study. The GEP224 glass fabric/epoxy was selected as the structural material of a composite bogie frame to save its weight. In order to obtain the fatigue characteristics of the GEP224 glass/epoxy composite material, the tension–compression fatigue test was done with three different stacking sequences of warp direction, fill direction, and warp/fill direction, respectively. A fatigue test was conducted with a stress ratio, R of 0.1 and −1, and up to endurance limit of 107 with frequency of 5 Hz. The fatigue strength of the GFRP composite bogie frame was evaluated on the basis of the S-N curve and Goodman diagrams obtained from GEP224 glass/epoxy composites according to the JIS E 4207 and UIC 515/615-4. The result shows that fatigue strength of the GFRP composite bogie has satisfied the design requirements. Also, the GFRP composite bogie frame had a good fatigue performance in comparison with conventional metal bogie frame, considering its weight.
