Stresses in Bolt Head

Abstract

The stress in bolt head is expected to be very high at the transition part of the cross section, which means the bolt connection has weak point in the part. We have tried to investigate the stress distribution by analytical and experimental methods as a case of two dimensional problem in a meridian plane. In the analytical consideration, we separate the domain into two parts, bolt head and shunk, and choose the stress functions suitable for the boundary conditions in each domain. The results of calculation show a little higher value compared with those found by experiments.