Experimental investigation of the fatigue behavior of adhesively-bonded pultruded GFRP joints under different load ratios

The fatigue response of adhesively-bonded pultruded GFRP double-lap joints was investigated under different loading patterns and experimental results were obtained for three different applied load ratios: R = 0.1, R = 10, and R = −1. The fatigue life of the examined joint configuration is affected by the different loading type, generally being shorter for tensile loads and longer when compressive loads were applied. The dominant failure mode was...