Measurement of residual stresses in weld repairs in steels

Abstract

Welding residual stresses have important consequences on the performance of engineering components. Residual stresses are more likely to be significant in repair welds since they are small, more highly constrained and faster cooling than large construction welds. In repair welds the loss of integrity due to residual stress can be even more important that in welds in general since the area being repaired has already failed probably due to high loadings.In the research presented in this chapter the neutron diffraction technique was used to investigate the residual stress distributions in carbon steel components with weld repairs. Two full penetration weld repairs were made using (a) the string..