콘텐츠 본문
논문 국내 국내전문학술지(KCI급) 면재 두께가 다른 샌드위치 복합재의 굽힘 거동 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2007-04
- 저자명 신광복, 전재선, 이재열, 류봉조, 이상진
- 학술지명 한국철도학회 논문집
- 발행처명 한국철도학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 5
- 연구분야 공학 > 기계공학
논문 초록 (Abstract)
Sandwich composites made of glass fabric epoxy facesheets with aluminum honeycomb core or balsa core is considered for the structural design of bodyshell of a Korean Low Floor Bus. Initially, in order to select the optimal facesheet and core materials in design stage, the flexural response of a sandwich composite is a critical importance. In this study, theoretical formula which could easily and quickly evaluate and obtain the flexural responses such as deflection and flexural stiffness of a sandwich composite subjected to external load was established. This theory could calculate the flexural responses of sandwich composites with narrow as well as wide width and with facesheets of unequal thickness, and also distinguish between the bending and shear effects of deflection. Finite element analysis using ANSYS V10.0 was used to offer the best elements for real sandwich composites, and flexural test according to ASTM C393 was conducted to compare with the results of theoretical formula and finite element analysis. The results show that the flexural responses of sandwich composites using proposed theoretical formula is in good agreement with those of experiment and finite element method.
