압축 및 굽힘 붕괴 하에서의 알루미늄/유리섬유 복합재 사각튜브의 에너지 흡수 특성

Abstract

In this paper, energy absorption capability of axial crush and bending collapse of aluminum/GFRP hybrid tubes were investigated. Glass fiber-epoxy composite prepregs were wrapped around an aluminum tube and then cured completely in the autoclave under the recommended Rue cycle. Failure of the hybrid tube under the axial compressive load and the bending load were experimentally investigated. For calculating energy absorption capabilily of axial crush and bending collapse behaviors of the hybrid tube the modified plastic hinge collapse model and the modified Kecman's model for hybrid tube were suggested, respectively. Two suggested models for the hybrid tube showed a good agreement with experimental results.