Abstract

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Title:: Research on Bending Properties of Metal Faced-composite Core Sandwich Panel

Author(s):: WANG Yue; FANG Hai; LIU Wei-qing; School of Civil Engineering, Nanjing University of Technology

Keywords:: GFRP; sandwich panel; transformed section method; mid-span deflection

Abstract:: Sandwich structure consisting of steel and glass fiber reinforced composite (GFRP) core pultruded hollow square tube was proposed. Bending experiment of metal facedcomposite core sandwich beam through using fourpoint bending test method was carried out. The distribution of strain, the mid-span deflections and the ultimate failure of the slab were analyzed. The effective bending stiffness of metal facedcomposite core sandwich panel was deduced by transformed section method, and the mid-span displacement computational formula was deduced by mechanics of materials theory. The mid-span deflections of samples were calculated. The theory results and test results were compared and they fitted well. The study results show that when the thickness of the core is constant, the mid-span deflection decreases with increasing thickness of metal faced.