Effect of continuous high temperature exposure on the adhesive strength of epoxy adhesive, CFRP and adhesively bonded CFRP-aluminum alloy joints

To investigate the degradation mechanism of adhesively bonded CFRP (carbon fiber reinforced plastics)-aluminum alloy joints applied to high speed EMUs (electric multiple units) after experiencing continuous high temperature environment, bulk specimens, CFRP plates and adhesive joints, including thick-adherend shear joints (TSJs), scarf joints (SJs) with scarf angle 45° (SJ45°) and butt joints (BJs) were exposed at 80 °C for 30 days and then...