リングバースト試験を用いたFW-FRP複合圧力容器のフープ方向疲労特性の評価(FRPの疲労・環境破壊,OS.14 先進材料の力学)

概要

論文の詳細を見る
The ring burst test equipment, the simplified method compared to the conventional tests and developed by the authors, was used to evaluate the fatigue properties of FW-FRP ring specimens in the hoop direction. The specimens used in this study were T700S/epoxy, CFRP rings. The static tests were carried out under displacement-control and 2mm/min of crosshead speed, while the fatigue tests were under load-control, sinusoidal wave, 5Hz of frequency and 0.05 of stress ratio. It is proved from the experimental results that modified ring burst test system was available for evaluating the fatigue properties of the CFRP rings in the hoop direction. Since stiffness degradation was not observed until final fracture during the fatigue tests, it was suggested that little fatigue damage was accumulated in fibres.
2004-03-03