G0301001 Experimental study on effect of washer for fatigue strength of bolted joints

Abstract

In this study, the effects of washers for fatigue strength of bolted joints were investigated. In order to investigate the effects, single-shear specimen with/without washer were employed and fatigue load tests were performed. The fatigue limits of the two types of specimens were compared by fatigue strength at 50% probability of failure. The test results showed that the fatigue limit of the test specimen with washer is higher than the one without washer because the washers were thought to reduce bending stress around bolt head.