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RESEARCH PRODUCT

LOAD SUPPORT OF FRC CYLINDERS UNDER COMPRESSION

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ABSTRACT The purpose of this research is to look for the optimum structure applied FRC for load support by considering the biomimetic design. For example, cortical bone is made of FRC structures for load support in living bones. Making a start of analysis, the osteon being an structural unit of cortical bone was modelled in filament-wound (FW) cylinder. The first approximation of cortical bone was represented by the densest arrangement of the cylinders to focus on compressive behaviour of osteons. E-glass/epoxy cylinders were applied to specimens. Static compression tests were carried out to evaluate these models. On the osteon model, the smaller ply angle to the longitudinal direction gave the larger compressive strength. The larger ply angle was the more effective in hoop tension of axial compressed cylinders. On trial model for the cortical bone, compressive strength was largest when ply angle was 60 degrees. Interference force between compressed cylinders had a great influence on compressive fracture of the model.