Al 合金/CFRP 接着接合継手の炭素繊維積層構成が剥離強度に及ぼす影響

抄録

In this study, we investigated the effect of carbon fiber laminate structure on peel strength of Al alloy / CFRP adhesive joint. Four types of CFRPs with different lamination configurations were manufactured and bonded to Al alloy to produce test specimens. In order to perform the peel test, we made a jig for reducing the force acting on the test piece in the longitudinal direction of the Al alloy. The peeling test was performed using a test machine AG-250kN / 300kN Xplus manufactured by Shimadzu Corporation. Attach the jig to the tester and fix the test piece to the jig table. The experimental results showed that the larger the maximum test force, the larger the fracture energy. Fracture is divided into three stages: instantaneous rupture of part, gradual rupture, and instantaneous rupture of the rest. Since there are various factors such as the maximum test force, the test force after the first break, and the stroke, it is difficult to simply perform the strength evaluation.