213 発砲ウレタン充填FRPの力学的特性に関する研究(高分子/高分子基複合材料)

概要

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In this study, influence of cell shape on mechanical properties in urethane foam filled FRP was investigated. About the urethane foam filled FRP, urethane-foam as a core and GFRP as a skin were applied .Urethane-foams with two kinds of cell shape and GFRP with four kinds of number of laminate were used, and various sandwich FRP were made by combining these materials. In the evaluation method, compression test in only urethane-foam and three point bending test in sandwich FRP were performed. As for the compression test of only urethane-foam, compression strength increased with the increase of b/a which was the ratio between the length in the horizontal direction and the length in the vertical direction of the cell. In the three point bending test of the sandwich, bending strength of sandwich FRP with 0 degree of cell angle showed higher than that of sandwich FRP with 90 degree of cell angle. Therefore, it was confirmed that the anisotropy of cell influenced the mechanical properties.
一般社団法人日本機械学会の論文
2009-11-06