콘텐츠 본문
논문 국내 국제일반학술지 Evaluation of Structural Integrity After Ballast-flying Impact Damage of a GFRP Lightweight Bogie Frame for railway vehicles
- 학술지 구분 국제일반학술지
- 게재년월 2015-06
- 저자명 Jun-Sung Goo, Jung-Seok Kim, Kwang-Bok Shin
- 학술지명 Journal of Mechanical Science and Technology
- 발행처명 한국철도학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 3
- 논문 다운로드 링크(외부) http://koreascience.or.kr/article/JAKO201217449888994.page
- 연구분야 공학 > 기계공학
논문 초록 (Abstract)
In order to evaluate the effect of structural degradation of a GFRP composite bogie frame due to ballast-flying phenomena, the impact test and residual compression test after impact was conducted for glass fiber/epoxy 4-harness satin woven laminate composites applied to skin part of a bogie frame. The impact test was performed using a instrumented impact testing system with energy levels of 5J, 10J, and 20J, and the impactor was designed to have various ballast shapes such as sphere, cube, and cone to consider the ballasted track environments. The residual compression strength was tested to evaluate the degradation of mechanical properties of impact-damaged laminate composites. The results showed that the damage area and the degradation of residual compressive strength after impact for laminate composites was increased with increase of impact energy for all ballast shapes, and was particularly most influenced by ballast shape of cone.
