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논문 국내 국내전문학술지(KCI급) 초저상 버스 차체 적용을 위한 샌드위치 패널들의 저속충격 특성 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2007-02
- 저자명 신광복, 이재열, 이상진
- 학술지명 대한기계학회 논문집 A권
- 발행처명 대한기계학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 3
- 연구분야 공학 > 기계공학
논문 초록 (Abstract)
In this paper, a study on low-velocity impact response of four different sandwich panels for the hybrid bodyshell and floor structure application of the Korean low floor bus vehicle was done. Square samples of 100mm sides were subjected low-velocity impact loading using an instrumented testing machine at six energy levels. Impact parameters like maximum force, time to maximum force, deflection at maximum force and absorbed energy were evaluated and compared for four different types of sandwich panels. The impact damage size and depth of the permanent indentation were measured by 3-Dimensional Scanner. Failure modes were studied by sectioning the specimens and observed under optical microscope. The impact test results show that sandwich panel with composite laminate facesheet could not observe damage mode of a permanent visible indentation after impact and has a good impact damage resistance in comparison with sandwich panel with metal aluminum facesheet.
