우레탄 폼 코어 샌드위치 복합재의 정적 특성 연구

초록

Sandwich composites have been applied to most industry, such as construction and civil engineering, trains and marine ship. Generally sandwich composites have some weak point, such as delamination, deboding, and core shear fracture. This study covered the properties for static bending and buckling behaviors on andwich composites with urethane foam core. For the variation of core thickness, it is confirmed the properties by experimental and finite element analysis using ANSYS. As the results, it showed the same behaviors for experiment and FEA. But, shear failure of core caused the difference between two methods.