1144 一方向CFRP積層平板のエネルギー吸収特性に与える接触面粗さの影響(G03-3 材料力学(3)複合材料1,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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Fiber reinforced plastic (FRP) has superior specific strength and stiffness as compared with metals. Well-designed FRP also shows high energy absorption capability. FRP may play an important role to develop ultra-light weight and crashworthy automobiles. The energy absorption capability of FRP tube, however, is strongly affected by the parameters such as fiber type, matrix type, stacking sequence, and cross sectional feature, which results in the difficulty of appropriate design for each target. It is reported that the crushing surface roughness also affects the energy absotpiton capability of FRP. Plate-type specimen is, therefore, preferred because it eliminates the effect of cross sectional feature and stacking sequence. In this study, compression test of plate-type specimen were performed using a special test fixture for plate-type specimen. The effect of crushing surface roughtness on energy absorption of FRP plate was investigated using unidirectional CFRP laminated plate with various thickness.
2008-08-02